| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 3430 |
87.7%
|
| 2 | 1 or 2 times | 257 |
6.6%
|
| 3 | 3 to 9 times | 100 |
2.6%
|
| 4 | 10 to 19 times | 49 |
1.3%
|
| 5 | 20 or more times | 77 |
2%
|
| Sysmiss | 34 |