| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 4959 |
34.5%
|
| 2 | Once a year | 4823 |
33.6%
|
| 3 | More than once a year | 3614 |
25.2%
|
| 7 | N/A | 603 |
4.2%
|
| 8 | Invalid | 8 |
0.1%
|
| 9 | Missing | 358 |
2.5%
|