OverviewThe default settings for chart and tables items are: 8 items per graph, and 30 items per table. This means that a graph (like pie charts) will only have 8 sections, and the tables underneath containing more specific text data will have 30 items.
These values can be changed by navigating to Configuration > System > Setup > Monitoring and modifying the values of the Table Items and Chart Items.
The max value for Table Items is 1000. The max value for Chart Items is 10.