| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 2989 |
85.3%
|
| 2 | 1 or 2 times | 296 |
8.4%
|
| 3 | 3 to 9 times | 116 |
3.3%
|
| 4 | 10 or more times | 103 |
2.9%
|
| Sysmiss | 187 |