| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 3512 |
97.1%
|
| 2 | 1 or 2 times | 73 |
2%
|
| 3 | 3 to 9 times | 9 |
0.2%
|
| 4 | 10 or more times | 23 |
0.6%
|
| Sysmiss | 189 |