| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 59 |
3.3%
|
| 2 | 1 | 138 |
7.7%
|
| 3 | 2 | 244 |
13.6%
|
| 4 | 3 or more | 1352 |
75.4%
|
| Sysmiss | 7 |