| Value | Category | Cases | |
|---|---|---|---|
| -3 | illegal missing | 0 |
0%
|
| -2 | dont know | 0 |
0%
|
| -1 | refuse | 8 |
15.7%
|
| 1 | Monthly | 38 |
74.5%
|
| 2 | Yearly | 2 |
3.9%
|
| 3 | Quarterly | 2 |
3.9%
|
| 4 | All amount was to be returned Once | 1 |
2%
|
| Sysmiss | 974 |