| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 2121 |
85.5%
|
| 2 | 1 or 2 times | 234 |
9.4%
|
| 3 | 3 to 9 times | 66 |
2.7%
|
| 4 | 10 or more times | 60 |
2.4%
|
| Sysmiss | 40 |