| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 139 |
7.1%
|
| 2 | 1 | 261 |
13.3%
|
| 3 | 2 | 306 |
15.6%
|
| 4 | 3 or more | 1258 |
64.1%
|
| Sysmiss | 67 |