| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 2010 |
84.9%
|
| 2 | 1 or 2 times | 228 |
9.6%
|
| 3 | 3 to 9 times | 82 |
3.5%
|
| 4 | 10 or more times | 48 |
2%
|
| Sysmiss | 376 |