| Education level | Pictograms | |||
| Yes | No | Sometimes | Total | |
| No | −19 | +14 | −9 | 20 |
| Primary | +1 | −3 | +10 | 20 |
| Secondary | +17 | −3 | −5 | 12 |
| University | +0 | −3 | +17 | 3 |
| Total | 14 | 37 | 4 | 55 |