| Value | Category | Cases | |
|---|---|---|---|
| 0 | 6 |
1.6%
|
|
| 1 | 300 |
77.5%
|
|
| 2 | 62 |
16%
|
|
| 3 | 15 |
3.9%
|
|
| 4 | 2 |
0.5%
|
|
| 6 | 1 |
0.3%
|
|
| 9 | 1 |
0.3%
|
|
| Sysmiss | 174 |