| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 173 |
5.2%
|
| 2 | 1 | 263 |
7.9%
|
| 3 | 2 | 355 |
10.7%
|
| 4 | 3 or more | 2520 |
76.1%
|
| Sysmiss | 20 |