| Value | Category | Cases | |
|---|---|---|---|
| 0 | 336 |
76%
|
|
| 1 | 61 |
13.8%
|
|
| 2 | 30 |
6.8%
|
|
| 3 | 2 |
0.5%
|
|
| 4 | 3 |
0.7%
|
|
| 8 | 1 |
0.2%
|
|
| 11 | 2 |
0.5%
|
|
| 99 | Unspecified | 7 |
1.6%
|
| Sysmiss | 1589 |