| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 2 |
0.2%
|
| 0 | Never | 1068 |
89%
|
| 1 | Less than once a year | 33 |
2.8%
|
| 2 | At least once a year | 32 |
2.7%
|
| 3 | At least every 6 months | 20 |
1.7%
|
| 4 | At least every 3 months | 24 |
2%
|
| 5 | At least once a month | 18 |
1.5%
|
| 9 | Don't know | 3 |
0.3%
|
| 998 | Refused | 0 |
0%
|