| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 219 |
7.5%
|
| 2 | 1 | 316 |
10.8%
|
| 3 | 2 | 465 |
15.8%
|
| 4 | 3 or more | 1935 |
65.9%
|
| Sysmiss | 13 |