| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Once | 131 | 123 |
2.3%
|
| 2 | Twice | 44 | 41 |
0.8%
|
| 3 | Three or more times | 34 | 21 |
0.4%
|
| Sysmiss | 5183 | 5208 |