| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 68 |
3.4%
|
| 2 | 1 | 143 |
7.1%
|
| 3 | 2 | 203 |
10.1%
|
| 4 | 3 or more | 1588 |
79.3%
|
| Sysmiss | 7 |