Presented by Jasculca Terman

Interactive: Explaining Illinois’ pension squeeze

Although details of the pension funding deal announced Friday have yet to emerge, any legislation will be aimed at reigning in the state's looming pension crisis. Scroll through these charts to see how Illinois' Pension Squeeze has tightened:

Since 1992, the portion of General Fund revenue required to fund the state's pension systems has risen from three to 15 percent in fiscal year 2013:

This has put a SQUEEZE on funding for other areas:

Compounding the problem is the amount of pension spending requirements that are unfunded:

This has helped make Illinois’ pension system one of the least funded in the U.S. Click on each state to see what percentage it's pension system is funded (2010 Pew Center on the States data):