| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 395 |
7.7%
|
| 2 | 1 | 1295 |
25.3%
|
| 3 | 2 | 1206 |
23.5%
|
| 4 | 3 or more | 2228 |
43.5%
|
| Sysmiss | 68 |