| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Less than once a year | 638 |
50.6%
|
| 1 | At least once a year | 97 |
7.7%
|
| 2 | At least every 6 months | 108 |
8.6%
|
| 3 | At least every 3 months | 67 |
5.3%
|
| 4 | At least once a month | 161 |
12.8%
|
| 5 | Once by month | 181 |
14.4%
|
| 9 | Don't know | 9 |
0.7%
|
| 998 | Refused | 0 |
0%
|
| Sysmiss | 3 |