| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 138 |
7.5%
|
| 2 | 1 | 227 |
12.3%
|
| 3 | 2 | 277 |
15%
|
| 4 | 3 or more | 1210 |
65.3%
|
| Sysmiss | 56 |