| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 698 |
10.7%
|
| 2 | 1 | 1189 |
18.2%
|
| 3 | 2 | 1163 |
17.8%
|
| 4 | 3 or more | 3488 |
53.3%
|
| Sysmiss | 207 |