| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 153 |
6.1%
|
| 2 | 1 | 200 |
8%
|
| 3 | 2 | 408 |
16.3%
|
| 4 | 3 or more | 1735 |
69.5%
|
| Sysmiss | 25 |