Over 30 years of retirement, Ferguson would collect as much as $746,207, according to a projection by Local Government Information Services (LGIS), which publishes Rock Island Today.
The projection assumes Ferguson received $15,684 in the first year of retirement, then 3 percent annual increases thereafter, compounded.
After 3 years of retirement, Ferguson will have already received $48,479 in retirement benefits, or more than the sum total of the retiree's contributions to the state pension fund.