| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 46 |
1.5%
|
| 2 | 1 | 180 |
5.8%
|
| 3 | 2 | 253 |
8.2%
|
| 4 | 3 or more | 2619 |
84.5%
|
| Sysmiss | 18 |