| Value | Category | Cases | |
|---|---|---|---|
| 0 | 4 |
0.9%
|
|
| 1 | 125 |
28.2%
|
|
| 2 | 249 |
56.2%
|
|
| 6 | 6 |
1.4%
|
|
| 7 | 36 |
8.1%
|
|
| 9 | 22 |
5%
|
|
| 20 | 1 |
0.2%
|
|
| Sysmiss | 1316 |