| Value | Category | Cases | |
|---|---|---|---|
| 0 | 989 |
20.9%
|
|
| 1 | 2717 |
57.4%
|
|
| 2 | 781 |
16.5%
|
|
| 3 | 187 |
4%
|
|
| 7 | 35 |
0.7%
|
|
| 8 | 13 |
0.3%
|
|
| 999 | 8 |
0.2%
|
|
| Sysmiss | 99 |