| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1422 |
78.8%
|
| 2 | 1 or 2 times | 229 |
12.7%
|
| 3 | 3 to 9 times | 75 |
4.2%
|
| 4 | 10 or more times | 79 |
4.4%
|
| Sysmiss | 59 |