| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 156 |
5.4%
|
| 2 | 1 | 353 |
12.3%
|
| 3 | 2 | 467 |
16.3%
|
| 4 | 3 or more | 1893 |
66%
|
| Sysmiss | 13 |