| Women | Men | |||||||
| Age group | 1990 | 2000 | 2005 | 2010 | 1990 | 2000 | 2005 | 2010 |
| Middle school and below | ||||||||
| 15 - 22 | 88.9% | 89.6% | 90.3% | 84.5% | 96.3% | 97.6% | 98.0% | 94.4% |
| 23 - 29 | 15.1% | 16.6% | 19.5% | 24.1% | 37.9% | 37.2% | 42.9% | 43.7% |
| 30 - 34 | 1.2% | 2.4% | 3.4% | 4.7% | 6.1% | 8.5% | 12.2% | 11.6% |
| 35 - 39 | 0.8% | 0.9% | 1.5% | 1.9% | 2.4% | 3.6% | 4.8% | 5.4% |
| 40 - 44 | 0.5% | 0.5% | 0.8% | 1.0% | 1.3% | 2.2% | 3.3% | 3.2% |
| 45 - 49 | 0.2% | 0.4% | 0.5% | 0.7% | 1.0% | 1.4% | 2.2% | 2.4% |
| 50 - 54 | 0.2% | 0.3% | 0.5% | 0.4% | 0.9% | 1.1% | 1.5% | 2.0% |
| 55 - 59 | 0.2% | 0.2% | 0.4% | 0.4% | 0.8% | 0.9% | 1.1% | 1.6% |
| High school | ||||||||
| 15 - 22 | 94.8% | 97.0% | 97.4% | 96.2% | 98.4% | 99.2% | 99.5% | 98.6% |
| 23 - 29 | 18.1% | 26.3% | 32.5% | 37.5% | 37.4% | 46.4% | 51.7% | 54.5% |
| 30 - 34 | 1.9% | 3.1% | 5.1% | 7.8% | 4.9% | 7.6% | 11.9% | 13.9% |
| 35 - 39 | 1.1% | 1.0% | 1.9% | 3.2% | 1.1% | 2.4% | 4.2% | 5.7% |
| 40 - 44 | 0.8% | 0.6% | 0.9% | 1.6% | 0.8% | 1.2% | 2.0% | 2.9% |
| 45 - 49 | 0.4% | 0.5% | 0.8% | 0.9% | 0.6% | 0.5% | 1.3% | 1.8% |
| 50 - 54 | 0.4% | 0.6% | 0.5% | 0.6% | 0.6% | 0.5% | 0.6% | 1.2% |
| 55 - 59 | 0.4% | 0.3% | 0.4% | 0.6% | 0.6% | 0.4% | 0.5% | 0.7% |
| College and above | ||||||||
| 15 - 22 | 98.7% | 98.6% | 98.2% | 98.7% | 99.6% | 99.7% | 99.6% | 99.5% |
| 23 - 29 | 36.7% | 37.0% | 49.8% | 55.3% | 51.0% | 53.6% | 64.4% | 67.2% |
| 30 - 34 | 6.4% | 4.2% | 6.5% | 10.7% | 4.5% | 7.2% | 11.9% | 15.1% |
| 35 - 39 | 2.9% | 1.6% | 2.7% | 4.2% | 1.0% | 1.6% | 3.0% | 4.9% |
| 40 - 44 | 1.9% | 1.6% | 1.0% | 2.1% | 0.5% | 0.6% | 0.9% | 2.2% |
| 45 - 49 | 0.7% | 1.5% | 1.2% | 1.3% | 0.4% | 0.3% | 0.6% | 1.1% |
| 50 - 54 | 0.4% | 1.0% | 1.1% | 1.2% | 0.6% | 0.4% | 0.3% | 0.7% |
| 55 - 59 | 0.7% | 0.7% | 1.0% | 1.1% | 0.8% | 0.3% | 0.2% | 0.5% |