Over 30 years of retirement, Williamson would collect as much as $5.63 million, according to a projection by Local Government Information Services (LGIS), which publishes Chicago City Wire.
The projection assumes Williamson received $118,427 in the first year of retirement, then 3 percent annual increases thereafter, compounded.
After 3 years of retirement, Williamson will have already received $366,046 in retirement benefits, or more than the sum total of the retiree's contributions to the state pension fund.