| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 153 |
7.1%
|
| 2 | 1 | 279 |
12.9%
|
| 3 | 2 | 342 |
15.9%
|
| 4 | 3 or more | 1381 |
64.1%
|
| Sysmiss | 11 |