| Value | Category | Cases | |
|---|---|---|---|
| 0 | 4 |
1.4%
|
|
| 1 | 153 |
55%
|
|
| 2 | 108 |
38.8%
|
|
| 3 | 7 |
2.5%
|
|
| 4 | 3 |
1.1%
|
|
| 8 | 1 |
0.4%
|
|
| 9 | 1 |
0.4%
|
|
| 11 | 1 |
0.4%
|
|
| Sysmiss | 514 |