| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 124 |
6.3%
|
| 2 | 1 | 189 |
9.5%
|
| 3 | 2 | 275 |
13.9%
|
| 4 | 3 or more | 1392 |
70.3%
|
| Sysmiss | 35 |