| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 4566 |
75.3%
|
| 2 | 1 or 2 times | 747 |
12.3%
|
| 3 | 3 to 9 times | 436 |
7.2%
|
| 4 | 10 or more times | 316 |
5.2%
|
| Sysmiss | 171 |