| Value | Category | Cases | |
|---|---|---|---|
| -2 | Ns/nc | 17 |
2.1%
|
| 0 | 499 |
61.9%
|
|
| 1 | 230 |
28.5%
|
|
| 2 | 48 |
6%
|
|
| 3 | 8 |
1%
|
|
| 4 | 3 |
0.4%
|
|
| 6 | 1 |
0.1%
|
|
| Sysmiss | 3721 |