| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -96 | Other | 7 |
4.3%
|
| 1 | One time only | 40 |
24.4%
|
| 2 | Once a month | 2 |
1.2%
|
| 3 | Several times a month | 0 |
0%
|
| 4 | Twice a year | 62 |
37.8%
|
| 5 | Ongoing | 53 |
32.3%
|
| Sysmiss | 46 |