| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all a serious problem | 3018 |
10.4%
|
| 2 | 2 | 234 |
0.8%
|
| 3 | 3 | 343 |
1.2%
|
| 4 | 4 | 368 |
1.3%
|
| 5 | 5 | 3109 |
10.7%
|
| 6 | 6 | 1863 |
6.4%
|
| 7 | 7 | 968 |
3.3%
|
| 8 | 8 | 1151 |
4%
|
| 9 | 9 | 297 |
1%
|
| 10 | An extremely serious problem | 17751 |
61%
|