| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 3301 |
90.8%
|
| 2 | 1 or 2 times | 224 |
6.2%
|
| 3 | 3 to 9 times | 69 |
1.9%
|
| 4 | 10 or more times | 40 |
1.1%
|
| Sysmiss | 235 |