| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 153 |
6.2%
|
| 2 | 1 | 196 |
7.9%
|
| 3 | 2 | 421 |
17%
|
| 4 | 3 or more | 1704 |
68.9%
|
| Sysmiss | 56 |