| Value | Category | Cases | |
|---|---|---|---|
| 1 | 20 |
11.8%
|
|
| 2 | 143 |
84.1%
|
|
| 3 | 1 |
0.6%
|
|
| 4 | 4 |
2.4%
|
|
| 6 | 1 |
0.6%
|
|
| 9 | 1 |
0.6%
|
|
| Sysmiss | 430 |