| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1675 |
77.4%
|
| 2 | 1 or 2 times | 314 |
14.5%
|
| 3 | 3 to 9 times | 101 |
4.7%
|
| 4 | 10 or more times | 75 |
3.5%
|
| Sysmiss | 32 |