| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 141 |
8.6%
|
| 2 | 1 | 170 |
10.4%
|
| 3 | 2 | 244 |
15%
|
| 4 | 3 or more | 1077 |
66%
|
| Sysmiss | 32 |