| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1931 |
84.5%
|
| 2 | 1 or 2 times | 232 |
10.2%
|
| 3 | 3 to 9 times | 65 |
2.8%
|
| 4 | 10 or more times | 57 |
2.5%
|
| Sysmiss | 107 |