| Value | Category | Cases | |
|---|---|---|---|
| 1 | Continuous | 359 |
35.1%
|
| 2 | On and off | 611 |
59.7%
|
| 8 | Don't know | 54 |
5.3%
|
| 9 | 9 | ||
| Sysmiss | 3170 |