| Women | Men | |||||||
| Age group | 1990 | 2000 | 2005 | 2010 | 1990 | 2000 | 2005 | 2010 |
| Middle school and below | ||||||||
| 15 - 22 | 79.7% | 87.4% | 86.2% | 79.9% | 89.9% | 96.3% | 95.9% | 92.3% |
| 23 - 29 | 8.6% | 11.7% | 15.4% | 19.9% | 24.5% | 30.0% | 36.2% | 36.3% |
| 30 - 34 | 0.3% | 0.9% | 1.7% | 3.9% | 9.5% | 7.9% | 10.8% | 12.8% |
| 35 - 39 | 0.1% | 0.3% | 0.5% | 1.2% | 7.6% | 5.3% | 5.8% | 7.7% |
| 40 - 44 | 0.2% | 0.1% | 0.3% | 0.5% | 6.8% | 5.6% | 4.4% | 5.2% |
| 45 - 49 | 0.2% | 0.1% | 0.2% | 0.3% | 6.9% | 5.4% | 4.7% | 4.2% |
| 50 - 54 | 0.2% | 0.1% | 0.2% | 0.2% | 6.2% | 5.5% | 4.7% | 4.6% |
| 55 - 59 | 0.2% | 0.1% | 0.2% | 0.2% | 4.9% | 5.8% | 4.7% | 4.6% |
| High school | ||||||||
| 15 - 22 | 93.0% | 96.6% | 97.4% | 96.4% | 95.2% | 99.0% | 99.3% | 98.4% |
| 23 - 29 | 13.5% | 29.8% | 34.8% | 37.0% | 16.2% | 39.9% | 47.2% | 48.2% |
| 30 - 34 | 0.6% | 2.3% | 4.0% | 6.0% | 2.6% | 4.9% | 8.4% | 10.0% |
| 35 - 39 | 0.3% | 0.4% | 1.2% | 1.9% | 2.1% | 1.4% | 2.6% | 4.0% |
| 40 - 44 | 0.4% | 0.1% | 0.2% | 0.7% | 1.8% | 1.1% | 1.2% | 1.9% |
| 45 - 49 | 0.1% | 0.1% | 0.3% | 0.3% | 2.1% | 1.2% | 0.8% | 1.0% |
| 50 - 54 | 0.0% | 0.1% | 0.1% | 0.2% | 2.8% | 1.3% | 1.1% | 0.8% |
| 55 - 59 | 0.0% | 0.2% | 0.0% | 0.3% | 3.6% | 1.4% | 1.0% | 0.8% |
| College and above | ||||||||
| 15 - 22 | 97.6% | 97.4% | 97.5% | 97.9% | 97.1% | 99.3% | 99.0% | 99.1% |
| 23 - 29 | 50.9% | 52.5% | 57.0% | 53.7% | 41.4% | 60.1% | 66.8% | 64.3% |
| 30 - 34 | 1.7% | 5.6% | 11.2% | 5.9% | 1.6% | 8.4% | 13.4% | 9.5% |
| 35 - 39 | 2.7% | 2.2% | 1.8% | 1.7% | 2.7% | 3.2% | 1.8% | 2.5% |
| 40 - 44 | 0.0% | 1.0% | 1.0% | 0.9% | 2.0% | 1.5% | 2.2% | 1.0% |
| 45 - 49 | 0.0% | 1.2% | 0.0% | 0.5% | 1.4% | 0.5% | 1.3% | 0.5% |
| 50 - 54 | 0.0% | 0.0% | 0.0% | 0.5% | 4.8% | 1.8% | 0.0% | 0.3% |
| 55 - 59 | 0.0% | 0.0% | 0.0% | 0.5% | 4.6% | 3.0% | 4.0% | 0.3% |