| Value | Category | Cases | |
|---|---|---|---|
| -5 | Not available | 1 |
1.4%
|
| 0 | 3 |
4.2%
|
|
| 1 | 53 |
73.6%
|
|
| 2 | 14 |
19.4%
|
|
| 3 | 1 |
1.4%
|
|
| Sysmiss | 128 |