| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1. Never | 4345 |
52.8%
|
| 1 | 2. Once | 1557 |
18.9%
|
| 2 | 3. A few times | 1263 |
15.4%
|
| 3 | 4. Many times | 724 |
8.8%
|
| 98 | 5. Don't know | 0 |
0%
|
| 99 | 6. Refused | 0 |
0%
|
| c | 254 |
3.1%
|
|
| d | 80 |
1%
|