| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1427 |
84.3%
|
| 2 | 1 or 2 times | 204 |
12.1%
|
| 3 | 3 to 9 times | 38 |
2.2%
|
| 4 | 10 or more times | 23 |
1.4%
|
| Sysmiss | 17 |