| Value | Category | Cases | |
|---|---|---|---|
| 0 | 166 |
30.2%
|
|
| 1 | 288 |
52.5%
|
|
| 2 | 67 |
12.2%
|
|
| 3 | 22 |
4%
|
|
| 4 | 4 |
0.7%
|
|
| 6 | 1 |
0.2%
|
|
| 9 | 1 |
0.2%
|
|
| Sysmiss | 12 |