| Value | Category | Cases | |
|---|---|---|---|
| 0 | 4 |
2.2%
|
|
| 1 | 131 |
72.4%
|
|
| 2 | 31 |
17.1%
|
|
| 3 | 6 |
3.3%
|
|
| 4 | 7 |
3.9%
|
|
| 5 | 2 |
1.1%
|
|
| Sysmiss | 9501 |