8B: Bar graph showing the percent of income needed to pay for college. Current Public Universities (2008). Oklahoma: 25%. Nation: 28%. Current Public Community Colleges (2008). Oklahoma: 20%. Nation: 24%. Baseline Public Universities (1999). Oklahoma: 21%. Nation: 19%. Baseline Public Community Colleges (1999). Oklahoma: 18%. Nation: 17%. Source: Measuring Up 2008, State-by-State Report Card for Higher Education.