| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1633 |
91.4%
|
| 2 | 1 or 2 times | 141 |
7.9%
|
| 3 | 3 to 9 times | 6 |
0.3%
|
| 4 | 10 or more times | 7 |
0.4%
|
| Sysmiss | 15 |