| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1929 |
66.1%
|
| 2 | 1 or 2 times | 659 |
22.6%
|
| 3 | 3 to 9 times | 215 |
7.4%
|
| 4 | 10 or more times | 117 |
4%
|
| Sysmiss | 114 |