| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1969 |
85.6%
|
| 2 | 1 or 2 times | 123 |
5.3%
|
| 3 | 3 to 9 times | 83 |
3.6%
|
| 4 | 10 to 19 times | 43 |
1.9%
|
| 5 | 20 or more times | 82 |
3.6%
|
| Sysmiss | 56 |