OK - answers something I've been wondering about since it was discussed - for a long while!
I turn 62 this year, so this would be the first year of COLA increase instead of AWI for me.
So - I suppose that AWI was applied at the end of last year, in my case, and it would have been the AWI calculated from 2019 since a whole year of data is needed?
Then this year, the COLA for 2022 is not determined until near the end of 2021, but they use the Oct 2020 through Sept 2021 CPI numbers because the COLA is announced in Oct of 2021.