| Value | Category | Cases | |
|---|---|---|---|
| 0 | 17 |
4.9%
|
|
| 1 | 308 |
88.5%
|
|
| 2 | 22 |
6.3%
|
|
| 3 | 1 |
0.3%
|
|
| Sysmiss | 213 |