| Value | Category | Cases | |
|---|---|---|---|
| 1 | weekly | 731 |
25.4%
|
| 2 | monthly | 1196 |
41.6%
|
| 3 | quarterlyh | 557 |
19.4%
|
| 4 | semi-annually | 108 |
3.8%
|
| 5 | annually | 94 |
3.3%
|
| 6 | other (specify) | 187 |
6.5%
|
| 8 | 1 |
0%
|
|
| Sysmiss | 3276 |