Former state school employee Charles Osborne, who retired in December 2016, saved $158,021 toward a pension over 30 years working for public schools, Teachers' Retirement System of the State of Illinois records show.

Over 30 years of retirement, Osborne would collect as much as $2.7 million, according to a projection by Local Government Information Services (LGIS), which publishes DuPage Policy Journal.

The projection assumes Osborne received $56,786 in the first year of retirement, then 3 percent annual increases thereafter, compounded.

After 3 years of retirement, Osborne will have already received $175,521 in retirement benefits, or more than the sum total of the retiree's contributions to the teachers' pension fund.