| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1777 |
84.5%
|
| 2 | 1 or 2 times | 240 |
11.4%
|
| 3 | 3 to 9 times | 55 |
2.6%
|
| 4 | 10 or more times | 30 |
1.4%
|
| Sysmiss | 57 |