| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 137 |
9.1%
|
| 2 | 1 | 164 |
10.9%
|
| 3 | 2 | 204 |
13.6%
|
| 4 | 3 or more | 998 |
66.4%
|
| Sysmiss | 26 |