| Value | Category | Cases | |
|---|---|---|---|
| 0 | NA | 0 |
0%
|
| 1 | Weeks | 0 |
0%
|
| 2 | Months | 0 |
0%
|
| 3 | Years | 8 |
0.7%
|
| 5 | Missing | 0 |
0%
|
| 8 | Dont Know | 0 |
0%
|
| 9 | NA | 1220 |
99.3%
|
| Sysmiss | 4663 |