| Value | Category | Cases | |
|---|---|---|---|
| 1 | Day | 0 |
0%
|
| 2 | Week | 0 |
0%
|
| 3 | Month | 0 |
0%
|
| 4 | months | 0 |
0%
|
| 5 | Year | 0 |
0%
|
| 7 | NA | 46 |
92%
|
| 8 | DK | 4 |
8%
|
| Sysmiss | 10866 |