| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 151 |
7.5%
|
| 2 | 1 | 270 |
13.4%
|
| 3 | 2 | 490 |
24.3%
|
| 4 | 3 or more | 1102 |
54.7%
|
| Sysmiss | 50 |