| Educational level: | DAS ≥ 13 | DAS < 13 | DAS ≥ 15 | DAS < 15 | Total |
| Grade school or none | 8 | 55 | 6 | 57 | 63 |
| High school graduate | 10 | 41 | 6 | 45 | 51 |
| Technical school | 15 | 143 | 7 | 151 | 158 |
| Vocational continuing education | 13 | 91 | 8 | 96 | 104 |
| Higher education 3 - 4 yr | 17 | 189 | 9 | 197 | 206 |
| Higher education ≥ 5 yr | 4 | 115 | 1 | 119 | 119 |
| Total | 67 | 634 | 37 | 664 | 701 |