The settings should have an option to "Always show values", which would keep the "Show values" option checked every time the user revisits the application. This option lists the values of each data point in the chart. Currently, users who prefer this have to manually check the box every time they load the application.

Requested at https://en.wikipedia.org/w/index.php?title=User_talk:MusikAnimal&oldid=1048170412#Show_values_as_default%2E