| Value | Category | Cases | |
|---|---|---|---|
| 1 | 128 |
4.2%
|
|
| 2 | 267 |
8.8%
|
|
| 3 | 937 |
30.8%
|
|
| 4 | 1709 |
56.2%
|
|
| 999 | 999. missing | 0 |
0%
|
| Sysmiss | 1497 |