| Value | Category | Cases | |
|---|---|---|---|
| 1 | no | 5097 |
99.8%
|
| 2 | Once | 6 |
0.1%
|
| 3 | More than once | 0 |
0%
|
| 4 | Not applicable | 0 |
0%
|
| Sysmiss | 2 |