| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0 | 135 |
44.4%
|
| 1 | 1 | 99 |
32.6%
|
| 2 | 2 | 44 |
14.5%
|
| 3 | 3 | 11 |
3.6%
|
| 4 | 4 | 3 |
1%
|
| 6 | 6 | 1 |
0.3%
|
| 7 | 7 | 1 |
0.3%
|
| 9 | 9 | 1 |
0.3%
|
| 99 | Unspecified | 9 |
3%
|
| Sysmiss | 1354 |