| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 4026 |
66.9%
|
| 2 | 1 or 2 times | 1052 |
17.5%
|
| 3 | 3 to 9 times | 541 |
9%
|
| 4 | 10 or more times | 400 |
6.6%
|
| Sysmiss | 217 |