| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 125 |
6.4%
|
| 2 | 1 | 172 |
8.8%
|
| 3 | 2 | 250 |
12.8%
|
| 4 | 3 or more | 1403 |
71.9%
|
| Sysmiss | 20 |