| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 72 |
4.7%
|
| 2 | 1 | 153 |
9.9%
|
| 3 | 2 | 301 |
19.5%
|
| 4 | 3 or more | 1019 |
66%
|
| Sysmiss | 10 |