| Value | Category | Cases | |
|---|---|---|---|
| 0 | 83 |
37.7%
|
|
| 1 | 69 |
31.4%
|
|
| 2 | 51 |
23.2%
|
|
| 3 | 12 |
5.5%
|
|
| 4 | 2 |
0.9%
|
|
| 6 | 3 |
1.4%
|
|
| Sysmiss | 887 |