| Value | Category | Cases | |
|---|---|---|---|
| 1 | Almost every month | 1277 |
6.4%
|
| 2 | In some months, but not every month | 1395 |
7%
|
| 3 | Only once or twice | 400 |
2%
|
| 8 | Not applicable | 16384 |
82.2%
|
| 9 | Unspecified | 484 |
2.4%
|