| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | No | 1992 |
83%
|
| 1 | Yes, once | 280 |
11.7%
|
| 2 | Yes, twice | 90 |
3.8%
|
| 3 | Yes, three or more times | 37 |
1.5%
|
| 9 | Don't Know | 1 |
0%
|