| Score | Knowledge | Frequency | Percentage (%) |
| 0% | Don’t know | 17 | 8.1 |
| [0%; 50%] | Limited | 191 | 91.4 |
| [50%; 65%] | Average | 1 | 0.5 |
| [65%; 85%] | Good enough | 0 | 0.0 |
| [85%; 100%] | Good | 0 | 0.0 |
| Total |
| 209 | 100.0 |