| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 299 |
12.1%
|
| 2 | 1 | 399 |
16.1%
|
| 3 | 2 | 461 |
18.6%
|
| 4 | 3 or more | 1319 |
53.2%
|
| Sysmiss | 72 |