diff --git a/docs/datanommer_datagrepper/datanommer.rst b/docs/datanommer_datagrepper/datanommer.rst
index bcd0fa7..80494b5 100644
--- a/docs/datanommer_datagrepper/datanommer.rst
+++ b/docs/datanommer_datagrepper/datanommer.rst
@@ -23,3 +23,27 @@ Here is how the database schema looks like currently:
      public | package_messages | table | datanommer
      public | user             | table | datanommer
      public | user_messages    | table | datanommer
+
+
+Table sizes
+-----------
+
+Here is the size of each table:
+
+
+::
+
+    datanommer=# SELECT
+    datanommer-#    relname as "Table",
+    datanommer-#    pg_size_pretty(pg_total_relation_size(relid)) As "Size",
+    datanommer-#    pg_size_pretty(pg_total_relation_size(relid) - pg_relation_size(relid)) as "External Size"
+    datanommer-#    FROM pg_catalog.pg_statio_user_tables ORDER BY pg_total_relation_size(relid) DESC;
+          Table       |    Size    | External Size
+    ------------------+------------+---------------
+     messages         | 706 GB     | 555 GB
+     package_messages | 10 GB      | 4779 MB
+     user_messages    | 10171 MB   | 4444 MB
+     package          | 22 MB      | 10 MB
+     user             | 6608 kB    | 2744 kB
+     alembic_version  | 8192 bytes | 0 bytes
+    (6 rows)