| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 1905 |
25.6%
|
| 1 | Current | 3106 |
41.7%
|
| 2 | Ever | 2433 |
32.7%
|
| 8 | Unknown | 0 |
0%
|
| 9 | Missing | 28 |