| Education level | Numbers | Average | |
| Uneducated | 222 | 25.58 ± 81.36 | Anova test Df = 3 p < 0.00002 |
| Primary | 75 | 56.45 ± 124.87 | |
| Secondary | 67 | 39.35 ± 72.54 | |
| University | 27 | 117.36 ± 140.63 |