| Value | Category | Cases | |
|---|---|---|---|
| 1 | Twice or more per month | 181 |
7.7%
|
| 2 | Monthly | 284 |
12%
|
| 3 | Quarterly | 283 |
12%
|
| 4 | Semi-annually | 302 |
12.8%
|
| 5 | Annually | 108 |
4.6%
|
| 6 | Sporadically as needed | 1194 |
50.5%
|
| 7 | Other (specify) | 14 |
0.6%
|
| Sysmiss | 17211 |