| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 2408 |
70.8%
|
| 2 | 1 or 2 times | 634 |
18.6%
|
| 3 | 3 to 9 times | 238 |
7%
|
| 4 | 10 or more times | 123 |
3.6%
|
| Sysmiss | 121 |