| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2050 |
43.3%
|
|
| 1 | 1733 |
36.6%
|
|
| 2 | 664 |
14%
|
|
| 3 | 157 |
3.3%
|
|
| 7 | 92 |
1.9%
|
|
| 8 | 30 |
0.6%
|
|
| 999 | 4 |
0.1%
|
|
| Sysmiss | 99 |