| Value | Category | Cases | |
|---|---|---|---|
| 0 | 18 |
11.5%
|
|
| 1 | 127 |
81.4%
|
|
| 2 | 8 |
5.1%
|
|
| 3 | 2 |
1.3%
|
|
| 5 | 1 |
0.6%
|
|
| Sysmiss | 6801 |