| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 50 |
0.2%
|
| 0 | Never | 22269 |
80.4%
|
| 1 | Less than once a year | 1292 |
4.7%
|
| 2 | At least once a year | 1246 |
4.5%
|
| 3 | At least every 6 months | 739 |
2.7%
|
| 4 | At least every 3 months | 882 |
3.2%
|
| 5 | At least once a month | 971 |
3.5%
|
| 9 | Don't know | 264 |
1%
|
| 998 | Refused | 0 |
0%
|