| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 343 |
6.9%
|
| 2 | 1 | 811 |
16.4%
|
| 3 | 2 | 1514 |
30.5%
|
| 4 | 3 or more | 2291 |
46.2%
|
| Sysmiss | 290 |