| Value | Category | Cases | |
|---|---|---|---|
| 1 | No, never | 424812 |
91.4%
|
| 2 | Yes, once | 34268 |
7.4%
|
| 3 | Yes, twice or more | 5732 |
1.2%
|
| 5 | Valid Skip | 0 | |
| 6 | Not Reached | 0 | |
| 7 | Not Applicable | 20492 | |
| 8 | Invalid | 162 | |
| 9 | No Response | 21959 | |
| Sysmiss | 11909 |