| Value | Category | Cases | |
|---|---|---|---|
| 0 | not applicable | 7 |
0.5%
|
| 1 | daily | 5 |
0.4%
|
| 2 | weekly | 2 |
0.2%
|
| 3 | monthly | 963 |
75.6%
|
| 4 | quarterly | 16 |
1.3%
|
| 5 | half yearly | 4 |
0.3%
|
| 6 | yearly | 277 |
21.7%
|
| Sysmiss | 8010 |