| Value | Category | Cases | |
|---|---|---|---|
| 0 | NOT GIVEN | 324 |
40%
|
| 4 | 2 |
0.2%
|
|
| 9 | 1 |
0.1%
|
|
| 17 | 1 |
0.1%
|
|
| 18 | 1 |
0.1%
|
|
| 28 | 1 |
0.1%
|
|
| 29 | 1 |
0.1%
|
|
| Sysmiss | 480 |
59.2%
|