| School grade (secondary school) | Age (in years) | Field of study | Educational region | ||||||||||
| First | Second | Third | 15 | 16 | 17 | - | Math and physics | Experimental sciences | Humanities | 4 | 6 | 7 | |
Frequency | 65 | 47 | 38 | 49 | 61 | 40 | 65 | 26 | 32 | 27 | 17 | 84 | 49 | |
Percentage | 43.3% | 31.3% | 25.3% | 32.7% | 40.7% | 26.7% | 43.33% | 17.33% | 21.33% | 18.0% | 11.3% | 56% | 32.7% | |
Total | F | 150 | 150 | 150 | 150 | |||||||||
% | 100 | 100 | 100 | 100 |