I tried unchecking the network monitor in settings and rechecking, but when I go back to the network monitor stats, they are still there from before, and haven't been zeroed out. Also, one thing I noticed as far as tracking data, if an app gets uninstalled, that data usage will be subtracted from the usage stats. In order to get an accurate account of data usage over time, it should still show data usage from apps even though uninstalled.