Garmin pilot IOS

[rotorman]

I'm new to the IOS ver. of GP. On the logbook page and to the left of "Pilot Name" and between the two main columns there is a column of 5 numbers that looks like this: '21, '20, etc. down to '17. They don't seem to serve any purpose. They are not on the Android ver. 

[eman1200]

screenshot?

[201Mooniac]

Those are tap-able buttons which are quick jump shortcuts to the year in your logbook.  If you just switched, they likely don't do anything as you don't have prior years entries.