Despite CSRS retirees comprising a majority of federal annuitants, they represent only 1.6% of the current federal workforce, with just 44,000 active employees still under CSRS as of the end of fiscal year 2022. This disparity arises because CSRS was closed to new entrants in 1984, and most federal employees hired thereafter are enrolled in FERS.​ https://www.federalpensionadvisors.com/post/how-many-retirees-are-under-csrs