| Value | Category | Cases | |
|---|---|---|---|
| 0 | 6 |
3%
|
|
| 1 | 2 |
1%
|
|
| 2 | 20 |
10.1%
|
|
| 3 | 34 |
17.2%
|
|
| 4 | 131 |
66.2%
|
|
| 5 | 5 |
2.5%
|
|
| Sysmiss | 148 |