| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 948 |
39.5%
|
| 2 | Once or twice | 64 |
2.7%
|
| 3 | Several times | 50 |
2.1%
|
| 4 | Many times | 22 |
0.9%
|
| 5 | Not Applicable/Saw no problems | 1304 |
54.4%
|
| 9 | Don't know | 11 |
0.5%
|