| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 153 |
7.3%
|
| 2 | 1 | 250 |
12%
|
| 3 | 2 | 345 |
16.5%
|
| 4 | 3 or more | 1342 |
64.2%
|
| Sysmiss | 21 |