| Value | Category | Cases | |
|---|---|---|---|
| -97 | Don't know | 0 | |
| 1 | 1 | 48 |
20.1%
|
| 2 | 2 | 152 |
63.6%
|
| 3 | 3 | 38 |
15.9%
|
| 4 | 4 | 1 |
0.4%
|
| a | Not applicable | 0 | |
| b | Don't know | 0 | |
| c | Refused to respond | 0 |