Over 30 years of retirement, McMahon would collect as much as $491,029, according to a projection by Local Government Information Services (LGIS), which publishes McLean County Times.
The projection assumes McMahon received $10,321 in the first year of retirement, then 3 percent annual increases thereafter, compounded.
After 4 years of retirement, McMahon will have already received $43,181 in retirement benefits, or more than the sum total of the retiree's contributions to the state pension fund.