| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 363 |
4.2%
|
| 2 | 1 | 626 |
7.2%
|
| 3 | 2 | 739 |
8.5%
|
| 4 | 3 or more | 6979 |
80.2%
|
| Sysmiss | 54 |