| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1. Never | 5035 |
61.2%
|
| 1 | 2. Once | 1576 |
19.2%
|
| 2 | 3. A few times | 828 |
10.1%
|
| 3 | 4. Many times | 396 |
4.8%
|
| 98 | 5. Don't know | 0 |
0%
|
| 99 | 6. Refused | 0 |
0%
|
| c | 308 |
3.7%
|
|
| d | 80 |
1%
|