| Value | Category | Cases | |
|---|---|---|---|
| 0 | Low knowledge | 356 |
6.7%
|
| 1 | 940 |
17.6%
|
|
| 2 | 1485 |
27.8%
|
|
| 3 | 1643 |
30.8%
|
|
| 4 | High knowledge | 887 |
16.6%
|
| -1 | Questions not asked (incomplete interview) | 26 |
0.5%
|