| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2 |
33.3%
|
|
| 77 | Don't know | 2 |
33.3%
|
| 88 | No applicable | 2 |
33.3%
|
| 99 | Missing | 0 |
0%
|
| Sysmiss | 4736 |