| Value | Category | Cases | |
|---|---|---|---|
| -89 | Don't know | 0 |
0%
|
| 1 | Anytime | 485 |
66.8%
|
| 2 | Monthly | 120 |
16.5%
|
| 3 | Yearly | 97 |
13.4%
|
| 4 | Other | 24 |
3.3%
|
| Sysmiss | 3704 |