| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 115 |
5.6%
|
| 2 | 1 | 226 |
11.1%
|
| 3 | 2 | 304 |
14.9%
|
| 4 | 3 or more | 1396 |
68.4%
|
| Sysmiss | 73 |