Chicago City Wire

Former substitute teacher Aidalis Rivera, who retired in January 2016, saved $58,648 toward a pension over 23 years working for public schools, Chicago Teachers' Pension Fund records show.

Over 30 years of retirement, Rivera would collect as much as $644,818, according to a projection by Local Government Information Services (LGIS), which publishes Chicago City Wire.

The projection assumes Rivera received $13,553 in the first year of retirement, then 3 percent annual increases thereafter, compounded.

After 5 years of retirement, Rivera will have already received $71,956 in retirement benefits, or more than the sum total of the retiree's contributions to the teachers' pension fund.