| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 160 |
8.9%
|
| 2 | 1 | 194 |
10.7%
|
| 3 | 2 | 237 |
13.1%
|
| 4 | 3 or more | 1216 |
67.3%
|
| Sysmiss | 68 |