| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 2349 |
87.6%
|
| 2 | 1 or 2 times | 230 |
8.6%
|
| 3 | 3 to 9 times | 67 |
2.5%
|
| 4 | 10 or more times | 35 |
1.3%
|
| Sysmiss | 49 |