| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 2282 |
77.3%
|
| 2 | 1 or 2 times | 457 |
15.5%
|
| 3 | 3 to 9 times | 121 |
4.1%
|
| 4 | 10 or more times | 91 |
3.1%
|
| Sysmiss | 61 |