| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1083 |
68.7%
|
| 2 | 1 or 2 times | 319 |
20.2%
|
| 3 | 3 to 9 times | 114 |
7.2%
|
| 4 | 10 or more times | 60 |
3.8%
|
| Sysmiss | 31 |