| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 19 |
9.6%
|
| 2 | 1 | 142 |
72.1%
|
| 3 | 2 | 26 |
13.2%
|
| 4 | 3 or more | 10 |
5.1%
|
| Sysmiss | 92 |