I’m not sure the numbers of the pilot group are more important than the percentage of upcoming retirees and growth numbers.
UPS will take delivery of 35 growth airframes by the end of 2022 (that we know of today, maybe some additional that we won’t know about for awhile). That’ll require 700+ pilots to staff in addition to a likely 500+ retirements in that same timeframe.
If a person were hired today, that’s a lot of growth beneath them, as well as good movement up the list. We only have 2750 pilots on the list, so the relative percentages are pretty high.