| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1421 |
79.7%
|
| 2 | 1 or 2 times | 212 |
11.9%
|
| 3 | 3 to 9 times | 74 |
4.1%
|
| 4 | 10 or more times | 77 |
4.3%
|
| Sysmiss | 20 |