| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 56 |
4%
|
| 2 | 1 | 97 |
7%
|
| 3 | 2 | 216 |
15.5%
|
| 4 | 3 or more | 1026 |
73.5%
|
| Sysmiss | 50 |