| Value | Category | Cases | |
|---|---|---|---|
| 1 | never | 31233 |
94.1%
|
| 2 | 1 to 3 times a year | 1554 |
4.7%
|
| 3 | 4 to 6 times a year | 237 |
0.7%
|
| 4 | 7 to 9 times a year | 44 |
0.1%
|
| 5 | 10+ times a year | 99 |
0.3%
|
| 8 | don't remember | 8 |
0%
|
| Sysmiss | 2608 |