| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 2309 |
97.2%
|
| 2 | 1 or 2 times | 46 |
1.9%
|
| 3 | 3 to 9 times | 17 |
0.7%
|
| 4 | 10 or more times | 3 |
0.1%
|
| Sysmiss | 25 |