| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 36 |
2.3%
|
| 2 | 1 | 83 |
5.2%
|
| 3 | 2 | 197 |
12.3%
|
| 4 | 3 or more | 1281 |
80.2%
|
| Sysmiss | 9 |