| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1418 |
93.4%
|
| 2 | 1 or 2 times | 68 |
4.5%
|
| 3 | 3 to 9 times | 24 |
1.6%
|
| 4 | 10 or more times | 9 |
0.6%
|
| Sysmiss | 56 |