| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 120 |
7.2%
|
| 2 | 1 | 375 |
22.6%
|
| 3 | 2 | 346 |
20.8%
|
| 4 | 3 or more | 819 |
49.3%
|
| Sysmiss | 13 |