| Value | Category | Cases | |
|---|---|---|---|
| 1 | No | 1912 |
96.2%
|
| 2 | Once | 44 |
2.2%
|
| 3 | More than once | 24 |
1.2%
|
| 4 | Not applicable | 5 |
0.3%
|
| Sysmiss | 3 |