| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1860 |
89.3%
|
| 2 | 1 or 2 times | 172 |
8.3%
|
| 3 | 3 to 9 times | 36 |
1.7%
|
| 4 | 10 or more times | 16 |
0.8%
|
| Sysmiss | 11 |