Statistics
The Statistics page gives you an overview about the size and numbers of items available in each database of the tenant. The information provided can help you to reduce the size of a database. Reducing the database size can improve the performance. The statistics dashboard gives an overview about all items stored in a database.
Select the database and click
Properties > 
Statistics. The dashboard shows the number of database items (default selection).Expand the Show statistics about list and select the database items that you want to see in the dashboard. Your selection only remains until you log in again.
If required, select another chart type to display the result as bars or pie chart.
The statistics are displayed based on your settings.
To print the chart, download the chart as a graphic, or download the used data set, click 
Chart context menu.