| Value | Category | Cases | |
|---|---|---|---|
| 1 | More than once per year | 125 |
4.8%
|
| 2 | Once a year | 251 |
9.7%
|
| 3 | Less than once per year | 286 |
11%
|
| 4 | Only once or twice | 271 |
10.5%
|
| 5 | Never | 1180 |
45.5%
|
| 6 | Not applicable/Don’t know | 479 |
18.5%
|
| Sysmiss | 32 |