| Value | Category | Cases | |
|---|---|---|---|
| 0 | 138 |
25.8%
|
|
| 1 | 353 |
66.1%
|
|
| 2 | 35 |
6.6%
|
|
| 3 | 6 |
1.1%
|
|
| 8 | 1 |
0.2%
|
|
| 9 | 1 |
0.2%
|
|
| Sysmiss | 966 |