| Value | Category | Cases | |
|---|---|---|---|
| 0 | 6 |
7.6%
|
|
| 1 | 53 |
67.1%
|
|
| 2 | 13 |
16.5%
|
|
| 3 | 2 |
2.5%
|
|
| 4 | 2 |
2.5%
|
|
| 6 | 2 |
2.5%
|
|
| 9 | 1 |
1.3%
|
|
| Sysmiss | 9599 |