| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 |
0.3%
|
|
| 2 | 9 |
3.1%
|
|
| 3 | 254 |
87.6%
|
|
| 4 | 19 |
6.6%
|
|
| 6 | 7 |
2.4%
|
|
| Sysmiss | 171 |