| Source of information | Answers | Total | ||||
| Yes | No | |||||
| Eff | % | Eff | % | Eff | % | |
| Not specified | 2 | 0.5 | 3 | 0.75 | 5 | 1.25 |
| Friends | 61 | 15.25 | 36 | 9 | 97 | 24.25 |
| Colleagues | 15 | 3.75 | 13 | 3.25 | 28 | 7.0 |
| School | 92 | 23 | 43 | 10.75 | 135 | 33.75 |
| Radio | 3 | 0.7 | 14 | 3.5 | 17 | 4.2 |
| Television | 45 | 11.25 | 21 | 5.25 | 66 | 16.5 |
| Internet | 11 | 2.75 | 15 | 3.75 | 26 | 6.5 |
| Newspapers | 13 | 3.25 | 13 | 3.75 | 26 | 7.0 |
| Total | 242 | 60.5 | 158 | 39.5 | 400 | 100.0 |