My FRA is April of 2015. For my DRC- PIA, I was given a starting figure of $1878 by the SSA. On every DRC starting with 1 and going to 48 there is a consistent increase of $12-$13 dollars. Between 2015 and 2018, I know there have been COLA increases to SS. My question is when do those increases in the COLA get added to my PIA?