| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 2181 |
91.3%
|
| 1 | Less than once a year | 43 |
1.8%
|
| 2 | At least once a year | 34 |
1.4%
|
| 3 | At least every 6 months | 27 |
1.1%
|
| 4 | At least every 3 months | 27 |
1.1%
|
| 5 | At least once a month | 65 |
2.7%
|
| 9 | Don't know | 13 |
0.5%
|
| 98 | Refused | 0 |
0%
|