| Have you filled a return in the last 4 years | Yes (%) | No (%) | |
| Education | primary | 44 | 56 |
| secondary | 35.5 | 64.5 | |
| tertiary | 67.6 | 32.40 | |
| none | 47.4 | 52.6 | |
| Total | 54.10 | 45.9 |