diff --git a/docs/releases/2.0.rst b/docs/releases/2.0.rst
index df9c54e898..e1dda20c3a 100644
--- a/docs/releases/2.0.rst
+++ b/docs/releases/2.0.rst
@@ -230,6 +230,7 @@ Other changes
 * setting_view_permission added to the smart settings app. It is no longer required to be a super admin or staff user to see the setting values.
 * Removal of the CombinedSource class.
 * Reduction of text strings.
+* Statistics refactor; purgestatistics command
 
 Upgrading from a previous version
 =================================
diff --git a/mayan/apps/documents/apps.py b/mayan/apps/documents/apps.py
index 982a5491ca..6b8eba3205 100644
--- a/mayan/apps/documents/apps.py
+++ b/mayan/apps/documents/apps.py
@@ -74,7 +74,8 @@ from .permissions import (
 from .settings import setting_thumbnail_size
 from .statistics import (
     new_documents_per_month, new_document_pages_per_month,
-    new_document_versions_per_month
+    new_document_versions_per_month, total_document_per_month,
+    total_document_page_per_month, total_document_version_per_month
 )
 from .widgets import document_thumbnail
 
@@ -352,24 +353,48 @@ class DocumentsApp(MayanAppConfig):
             links=(link_transformation_list,), sources=(DocumentPage,)
         )
 
-        namespace = StatisticNamespace(name='documents', label=_('Documents'))
+        namespace = StatisticNamespace(slug='documents', label=_('Documents'))
         namespace.add_statistic(
             slug='new-documents-per-month',
             label=_('New documents per month'),
             func=new_documents_per_month,
-            renderer=CharJSLine
+            renderer=CharJSLine,
+            minute='0'
         )
         namespace.add_statistic(
             slug='new-document-versions-per-month',
             label=_('New document versions per month'),
             func=new_document_versions_per_month,
-            renderer=CharJSLine
+            renderer=CharJSLine,
+            minute='0'
         )
         namespace.add_statistic(
             slug='new-document-pages-per-month',
             label=_('New document pages per month'),
             func=new_document_pages_per_month,
-            renderer=CharJSLine
+            renderer=CharJSLine,
+            minute='0'
+        )
+        namespace.add_statistic(
+            slug='total-documents-at-each-month',
+            label=_('Total documents at each month'),
+            func=total_document_per_month,
+            renderer=CharJSLine,
+            minute='0'
+        )
+        namespace.add_statistic(
+            slug='total-document-versions-at-each-month',
+            label=_('Total document versions at each month'),
+            func=total_document_version_per_month,
+            renderer=CharJSLine,
+            minute='0'
+        )
+        namespace.add_statistic(
+            slug='total-document-pages-at-each-month',
+            label=_('Total document pages at each month'),
+            func=total_document_page_per_month,
+            renderer=CharJSLine,
+            minute='0'
         )
 
         post_initial_setup.connect(
diff --git a/mayan/apps/documents/statistics.py b/mayan/apps/documents/statistics.py
index 848288f68a..b838784e7a 100644
--- a/mayan/apps/documents/statistics.py
+++ b/mayan/apps/documents/statistics.py
@@ -5,45 +5,11 @@ import datetime
 import qsstats
 
 from django.db.models import Avg, Count, Max, Min
-from django.template.defaultfilters import filesizeformat
-from django.utils import formats
-from django.utils.encoding import force_text
 from django.utils.translation import ugettext_lazy as _
 
 from statistics.classes import Statistic
 
 from .models import Document, DocumentType, DocumentPage, DocumentVersion
-from .runtime import storage_backend
-
-
-def get_used_size(path, file_list):
-    total_size = 0
-    for filename in file_list:
-        try:
-            total_size += storage_backend.size(
-                storage_backend.separator.join([path, filename])
-            )
-        except OSError:
-            pass
-
-    return total_size
-
-
-def storage_count(path='.'):
-    try:
-        directories, files = storage_backend.listdir(path)
-    except OSError:
-        return 0, 0
-    else:
-        total_count = len(files)
-        total_size = get_used_size(path, files)
-
-        for directory in directories:
-            file_count, files_size = storage_count(directory)
-            total_count += file_count
-            total_size += files_size
-
-        return total_count, total_size
 
 
 def new_documents_per_month():
@@ -54,7 +20,7 @@ def new_documents_per_month():
 
     return {
         'series': {
-            'Document': map(lambda x: {x[0].month: x[1]}, qss.time_series(start=this_year, end=today, interval='months'))
+            'Documents': map(lambda x: {x[0].month: x[1]}, qss.time_series(start=this_year, end=today, interval='months'))
         }
     }
 
@@ -67,7 +33,7 @@ def new_document_versions_per_month():
 
     return {
         'series': {
-            'Document': map(lambda x: {x[0].month: x[1]}, qss.time_series(start=this_year, end=today, interval='months'))
+            'Versions': map(lambda x: {x[0].month: x[1]}, qss.time_series(start=this_year, end=today, interval='months'))
         }
     }
 
@@ -80,45 +46,83 @@ def new_document_pages_per_month():
 
     return {
         'series': {
-            'Document': map(lambda x: {x[0].month: x[1]}, qss.time_series(start=this_year, end=today, interval='months'))
+            'Pages': map(lambda x: {x[0].month: x[1]}, qss.time_series(start=this_year, end=today, interval='months'))
+        }
+    }
+
+def total_document_per_month():
+    qss = qsstats.QuerySetStats(Document.objects.all(), 'date_added')
+    this_year = datetime.date.today().year
+
+    result = []
+
+    for month in range(1, datetime.date.today().month + 1):
+        next_month = month + 1
+        print month
+
+        if next_month == 12:
+            next_month = 1
+            year = this_year + 1
+        else:
+            next_month = month + 1
+            year = this_year
+
+        result.append({month: qss.until(datetime.date(year, next_month, 1))})
+
+    return {
+        'series': {
+            'Documents': result
         }
     }
 
 
-"""
+def total_document_version_per_month():
+    qss = qsstats.QuerySetStats(DocumentVersion.objects.all(), 'document__date_added')
+    this_year = datetime.date.today().year
 
-class DocumentUsageStatistics(Statistic):
-    def get_results(self):
-        results = []
+    result = []
 
-        total_db_documents = Document.objects.only('pk',).count()
+    for month in range(1, datetime.date.today().month + 1):
+        next_month = month + 1
+        print month
 
-        results.extend(
-            [
-                _('Documents in database: %d') % total_db_documents,
-            ]
-        )
+        if next_month == 12:
+            next_month = 1
+            year = this_year + 1
+        else:
+            next_month = month + 1
+            year = this_year
 
-        try:
-            total_storage_documents, storage_used_space = storage_count()
-            results.append(
-                _('Documents in storage: %d') % total_storage_documents
-            )
-            results.append(
-                _(
-                    'Space used in storage: %s'
-                ) % filesizeformat(storage_used_space)
-            )
-        except NotImplementedError:
-            pass
+        result.append({month: qss.until(datetime.date(year, next_month, 1))})
 
-        results.extend(
-            [
-                _(
-                    'Document pages in database: %d'
-                ) % DocumentPage.objects.only('pk',).count(),
-            ]
-        )
+    return {
+        'series': {
+            'Versions': result
+        }
+    }
 
-        return results
-"""
+
+def total_document_page_per_month():
+    qss = qsstats.QuerySetStats(DocumentPage.objects.all(), 'document_version__document__date_added')
+    this_year = datetime.date.today().year
+
+    result = []
+
+    for month in range(1, datetime.date.today().month + 1):
+        next_month = month + 1
+        print month
+
+        if next_month == 12:
+            next_month = 1
+            year = this_year + 1
+        else:
+            next_month = month + 1
+            year = this_year
+
+        result.append({month: qss.until(datetime.date(year, next_month, 1))})
+
+    return {
+        'series': {
+            'Pages': result
+        }
+    }
diff --git a/mayan/apps/statistics/apps.py b/mayan/apps/statistics/apps.py
index 5d051fac0e..92c4ea886d 100644
--- a/mayan/apps/statistics/apps.py
+++ b/mayan/apps/statistics/apps.py
@@ -1,7 +1,6 @@
 from __future__ import unicode_literals
 
-from datetime import timedelta
-
+from celery.schedules import crontab
 from kombu import Exchange, Queue
 
 from django.utils.translation import ugettext_lazy as _
@@ -9,13 +8,14 @@ from django.utils.translation import ugettext_lazy as _
 from mayan.celery import app
 from common import MayanAppConfig, menu_object, menu_secondary, menu_tools
 
+from navigation import SourceColumn
+
 from .classes import Statistic, StatisticNamespace
 from .links import (
     link_execute, link_namespace_details, link_namespace_list,
-    link_statistics
+    link_statistics, link_view
 )
-from .literals import STATISTICS_REFRESH_INTERVAL
-from .tasks import task_check_statistics  # NOQA - Force registration of task
+from .tasks import task_execute_statistic  # NOQA - Force registration of task
 
 
 class StatisticsApp(MayanAppConfig):
@@ -25,13 +25,10 @@ class StatisticsApp(MayanAppConfig):
     def ready(self):
         super(StatisticsApp, self).ready()
 
-        app.conf.CELERYBEAT_SCHEDULE.update(
-            {
-                'statistics.task_check_statistics': {
-                    'task': 'statistics.tasks.task_check_statistics',
-                    'schedule': timedelta(seconds=STATISTICS_REFRESH_INTERVAL),
-                },
-            }
+        SourceColumn(
+            source=Statistic,
+            label=_('Schedule'),
+            attribute='schedule',
         )
 
         app.conf.CELERY_QUEUES.extend(
@@ -43,15 +40,7 @@ class StatisticsApp(MayanAppConfig):
             )
         )
 
-        app.conf.CELERY_ROUTES.update(
-            {
-                'statistics.tasks.task_check_statistics': {
-                    'queue': 'statistics'
-                },
-            }
-        )
-
-        menu_object.bind_links(links=(link_execute,), sources=(Statistic,))
+        menu_object.bind_links(links=(link_execute, link_view), sources=(Statistic,))
         menu_object.bind_links(
             links=(link_namespace_details,), sources=(StatisticNamespace,)
         )
diff --git a/mayan/apps/statistics/classes.py b/mayan/apps/statistics/classes.py
index 6d634ceab8..333b288d48 100644
--- a/mayan/apps/statistics/classes.py
+++ b/mayan/apps/statistics/classes.py
@@ -2,6 +2,11 @@ from __future__ import unicode_literals
 
 import json
 
+from celery.schedules import crontab
+from djcelery.models import PeriodicTask
+
+from mayan.celery import app
+
 from .models import StatisticResult
 
 
@@ -13,14 +18,14 @@ class StatisticNamespace(object):
         return cls._registry.values()
 
     @classmethod
-    def get(cls, name):
-        return cls._registry[name]
+    def get(cls, slug):
+        return cls._registry[slug]
 
-    def __init__(self, name, label):
-        self.name = name
+    def __init__(self, slug, label):
+        self.slug = slug
         self.label = label
         self._statistics = []
-        self.__class__._registry[name] = self
+        self.__class__._registry[slug] = self
 
     def __unicode__(self):
         return unicode(self.label)
@@ -30,10 +35,6 @@ class StatisticNamespace(object):
         statistic.namespace = self
         self._statistics.append(statistic)
 
-    @property
-    def id(self):
-        return self.name
-
     @property
     def statistics(self):
         return self._statistics
@@ -42,6 +43,22 @@ class StatisticNamespace(object):
 class Statistic(object):
     _registry = {}
 
+    @staticmethod
+    def purge_schedules():
+        queryset = PeriodicTask.objects.filter(name__startswith='statistics.').exclude(name__in=Statistic.get_task_names())
+
+        for periodic_task in queryset:
+            crontab_instance = periodic_task.crontab
+            periodic_task.delete()
+
+            if crontab_instance and not crontab_instance.periodictask_set.all():
+                # Only delete the interval if nobody else is using it
+                crontab_instance.delete()
+
+        StatisticResult.objects.filter(
+            slug__in=queryset.values_list('name', flat=True)
+        ).delete()
+
     @classmethod
     def get_all(cls):
         return cls._registry.values()
@@ -50,11 +67,39 @@ class Statistic(object):
     def get(cls, slug):
         return cls._registry[slug]
 
-    def __init__(self, slug, label, func, renderer):
+    @classmethod
+    def get_task_names(cls):
+        return [task.get_task_name() for task in cls.get_all()]
+
+    def __init__(self, slug, label, func, renderer, minute='*', hour='*', day_of_week='*', day_of_month='*', month_of_year='*'):
         self.slug = slug
         self.label = label
         self.func = func
         self.renderer = renderer
+
+        self.schedule = crontab(
+            minute=minute, hour=hour, day_of_week=day_of_week,
+            day_of_month=day_of_month, month_of_year=month_of_year,
+        )
+
+        app.conf.CELERYBEAT_SCHEDULE.update(
+            {
+                self.get_task_name(): {
+                    'task': 'statistics.tasks.task_execute_statistic',
+                    'schedule': self.schedule,
+                    'args': (self.slug,)
+                },
+            }
+        )
+
+        app.conf.CELERY_ROUTES.update(
+            {
+                self.get_task_name(): {
+                    'queue': 'statistics'
+                },
+            }
+        )
+
         self.__class__._registry[slug] = self
 
     def __unicode__(self):
@@ -63,14 +108,13 @@ class Statistic(object):
     def execute(self):
         self.store_results(results=self.func())
 
-    @property
-    def id(self):
-        return self.slug
+    def get_task_name(self):
+        return 'statistics.task_execute_statistic_{}'.format(self.slug)
 
     def store_results(self, results):
         StatisticResult.objects.filter(slug=self.slug).delete()
 
-        statistic_result = StatisticResult.objects.create(slug=self.slug)
+        statistic_result, created = StatisticResult.objects.get_or_create(slug=self.slug)
         statistic_result.store_data(data=results)
 
     def get_results(self):
@@ -95,6 +139,14 @@ class CharJSLine(ChartRenderer):
     template_name = 'statistics/backends/chartjs/line.html'
 
     dataset_palette = (
+        {
+            'fillColor': "rgba(220,220,220,0.2)",
+            'strokeColor': "rgba(220,220,220,1)",
+            'pointColor': "rgba(220,220,220,1)",
+            'pointStrokeColor': "#fff",
+            'pointHighlightFill': "#fff",
+            'pointHighlightStroke': "rgba(220,220,220,1)",
+        },
         {
             'fillColor': "rgba(151,187,205,0.2)",
             'strokeColor': "rgba(151,187,205,1)",
@@ -103,14 +155,6 @@ class CharJSLine(ChartRenderer):
             'pointHighlightFill': "#fff",
             'pointHighlightStroke': "rgba(151,187,205,1)",
         },
-        {
-            'fillColor': "rgba(220,220,220,0.2)",
-            'strokeColor': "rgba(220,220,220,1)",
-            'pointColor': "rgba(220,220,220,1)",
-            'pointStrokeColor': "#fff",
-            'pointHighlightFill': "#fff",
-            'pointHighlightStroke': "rgba(220,220,220,1)",
-        }
     )
 
     def get_chart_data(self):
diff --git a/mayan/apps/statistics/links.py b/mayan/apps/statistics/links.py
index 6a55576cd2..88e6370188 100644
--- a/mayan/apps/statistics/links.py
+++ b/mayan/apps/statistics/links.py
@@ -8,12 +8,16 @@ from .permissions import permission_statistics_view
 
 
 link_execute = Link(
+    permissions=(permission_statistics_view,), text=_('Queue'),
+    view='statistics:statistic_queue', args='resolved_object.slug'
+)
+link_view = Link(
     permissions=(permission_statistics_view,), text=_('View'),
-    view='statistics:statistic_detail', args='resolved_object.id'
+    view='statistics:statistic_detail', args='resolved_object.slug'
 )
 link_namespace_details = Link(
     permissions=(permission_statistics_view,), text=_('Namespace details'),
-    view='statistics:namespace_details', args='resolved_object.id'
+    view='statistics:namespace_details', args='resolved_object.slug'
 )
 link_namespace_list = Link(
     permissions=(permission_statistics_view,), text=_('Namespace list'),
diff --git a/mayan/apps/statistics/literals.py b/mayan/apps/statistics/literals.py
deleted file mode 100644
index 85ab08bbef..0000000000
--- a/mayan/apps/statistics/literals.py
+++ /dev/null
@@ -1,3 +0,0 @@
-from __future__ import unicode_literals
-
-STATISTICS_REFRESH_INTERVAL = 60 * 60 * 24  # Every 12 hours
diff --git a/mayan/apps/statistics/management/__init__.py b/mayan/apps/statistics/management/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/mayan/apps/statistics/management/commands/__init__.py b/mayan/apps/statistics/management/commands/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/mayan/apps/statistics/management/commands/purgestatistics.py b/mayan/apps/statistics/management/commands/purgestatistics.py
new file mode 100644
index 0000000000..f3dd67ba13
--- /dev/null
+++ b/mayan/apps/statistics/management/commands/purgestatistics.py
@@ -0,0 +1,12 @@
+from __future__ import unicode_literals
+
+from django.core.management.base import BaseCommand
+
+from ...classes import Statistic
+
+
+class Command(BaseCommand):
+    help = 'Remove obsolete statistics scheduled and results from the database'
+
+    def handle(self, *args, **options):
+        Statistic.purge_schedules()
diff --git a/mayan/apps/statistics/tasks.py b/mayan/apps/statistics/tasks.py
index 7013bcf45a..21af51caf2 100644
--- a/mayan/apps/statistics/tasks.py
+++ b/mayan/apps/statistics/tasks.py
@@ -4,17 +4,15 @@ import logging
 
 from mayan.celery import app
 
-from .classes import StatisticNamespace
+from .classes import Statistic
 
 logger = logging.getLogger(__name__)
 
 
 @app.task(ignore_result=True)
-def task_check_statistics():
+def task_execute_statistic(slug):
     logger.info('Executing')
 
-    for namespace in StatisticNamespace.get_all():
-        for statistic in namespace.statistics:
-            statistic.execute()
+    Statistic.get(slug=slug).execute()
 
     logger.info('Finshed')
diff --git a/mayan/apps/statistics/urls.py b/mayan/apps/statistics/urls.py
index 9c8355792f..3f568d6df4 100644
--- a/mayan/apps/statistics/urls.py
+++ b/mayan/apps/statistics/urls.py
@@ -2,17 +2,24 @@ from __future__ import unicode_literals
 
 from django.conf.urls import patterns, url
 
-from .views import NamespaceDetailView, NamespaceListView, StatisticDetailView
+from .views import (
+    NamespaceDetailView, NamespaceListView, StatisticDetailView,
+    StatisticQueueView
+)
 
 urlpatterns = patterns(
     'statistics.views',
     url(r'^$', NamespaceListView.as_view(), name='namespace_list'),
     url(
-        r'^namespace/(?P<namespace_id>\w+)/details/$',
+        r'^namespace/(?P<slug>[\w-]+)/details/$',
         NamespaceDetailView.as_view(), name='namespace_details'
     ),
     url(
         r'^(?P<slug>[\w-]+)/view/$', StatisticDetailView.as_view(),
         name='statistic_detail'
     ),
+    url(
+        r'^(?P<slug>[\w-]+)/queue/$', StatisticQueueView.as_view(),
+        name='statistic_queue'
+    ),
 )
diff --git a/mayan/apps/statistics/views.py b/mayan/apps/statistics/views.py
index f109b11d7d..223308d6b5 100644
--- a/mayan/apps/statistics/views.py
+++ b/mayan/apps/statistics/views.py
@@ -2,13 +2,18 @@ from __future__ import unicode_literals
 
 import json
 
+from django.core.urlresolvers import reverse
 from django.http import Http404
+from django.shortcuts import HttpResponseRedirect
 from django.utils.translation import ugettext_lazy as _
 
-from common.views import SingleObjectDetailView, SingleObjectListView
+from common.generics import (
+    ConfirmView, SingleObjectDetailView, SingleObjectListView
+)
 
 from .classes import Statistic, StatisticNamespace
 from .permissions import permission_statistics_view
+from .tasks import task_execute_statistic
 
 
 class NamespaceListView(SingleObjectListView):
@@ -34,7 +39,7 @@ class NamespaceDetailView(SingleObjectListView):
         }
 
     def get_namespace(self):
-        return StatisticNamespace.get(self.kwargs['namespace_id'])
+        return StatisticNamespace.get(self.kwargs['slug'])
 
     def get_queryset(self):
         return self.get_namespace().statistics
@@ -61,3 +66,30 @@ class StatisticDetailView(SingleObjectDetailView):
 
     def get_template_names(self):
         return (self.get_object().renderer.template_name,)
+
+
+class StatisticQueueView(ConfirmView):
+    view_permission = permission_statistics_view
+
+    def get_extra_context(self):
+        return {
+            'namespace': self.get_object().namespace,
+            'object': self.get_object(),
+            'title': _('Queue statistic "%s" to be updated?') % self.get_object(),
+        }
+
+    def get_object(self):
+        try:
+            return Statistic.get(self.kwargs['slug'])
+        except KeyError:
+            raise Http404(_('Statistic "%s" not found.') % self.kwargs['slug'])
+
+    def get_post_action_redirect(self):
+        return reverse(
+            'statistics:namespace_details',
+            args=(self.get_object().namespace.slug,)
+        )
+
+    def post(self, request, *args, **kwargs):
+        task_execute_statistic.delay(slug=self.get_object().slug)
+        return HttpResponseRedirect(self.get_post_action_redirect())