| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every year | 932 |
93.3%
|
| 2 | Most years | 34 |
3.4%
|
| 3 | Some years | 22 |
2.2%
|
| 4 | No/never | 11 |
1.1%
|
| 5 | Refused | 0 |
0%
|
| Sysmiss | 1 |