| Value | Category | Cases | |
|---|---|---|---|
| 0 | 271 |
58.4%
|
|
| 1 | 137 |
29.5%
|
|
| 2 | 37 |
8%
|
|
| 3 | 14 |
3%
|
|
| 4 | 1 |
0.2%
|
|
| 5 | 3 |
0.6%
|
|
| 7 | 1 |
0.2%
|
|
| Sysmiss | 6718 |