| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 237 |
13.1%
|
| 2 | 1 | 326 |
18%
|
| 3 | 2 | 253 |
13.9%
|
| 4 | 3 or more | 998 |
55%
|
| Sysmiss | 207 |