| Value | Category | Cases | |
|---|---|---|---|
| -5 | Not available | 1 |
1.3%
|
| 0 | 8 |
10.5%
|
|
| 1 | 56 |
73.7%
|
|
| 2 | 9 |
11.8%
|
|
| 3 | 2 |
2.6%
|
|
| Sysmiss | 124 |