| Value | Category | Cases | |
|---|---|---|---|
| 0 | 18 |
11.3%
|
|
| 1 | 125 |
78.6%
|
|
| 2 | 11 |
6.9%
|
|
| 3 | 4 |
2.5%
|
|
| 4 | 1 |
0.6%
|
|
| Sysmiss | 6798 |