| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 46 |
6.6%
|
| 2 | 1 | 32 |
4.6%
|
| 3 | 2 | 70 |
10.1%
|
| 4 | 3 or more | 547 |
78.7%
|
| Sysmiss | 6 |