| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1967 |
82%
|
| 1 | Less than once a year | 85 |
3.5%
|
| 2 | At least once a year | 59 |
2.5%
|
| 3 | At least every 6 months | 72 |
3%
|
| 4 | At least every 3 months | 65 |
2.7%
|
| 5 | At least once a month | 87 |
3.6%
|
| 9 | Don't know | 65 |
2.7%
|
| 998 | Refused | 0 |
0%
|