| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 9 |
0.8%
|
| 0 | Never | 969 |
87.8%
|
| 1 | Less than once a year | 26 |
2.4%
|
| 2 | At least once a year | 32 |
2.9%
|
| 3 | At least every 6 months | 15 |
1.4%
|
| 4 | At least every 3 months | 27 |
2.4%
|
| 5 | At least once a month | 18 |
1.6%
|
| 9 | Don't know | 8 |
0.7%
|
| 998 | Refused | 0 |
0%
|