| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 43806 |
92.3%
|
| 2 | Once | 513 |
1.1%
|
| 3 | Twice | 131 |
0.3%
|
| 4 | 3 or 4 times | 60 |
0.1%
|
| 5 | 5 times or more | 42 |
0.1%
|
| 6 | No experience | 2927 |
6.2%
|
| 2147483623 | Refused | 0 |
0%
|
| 2147483624 | Don't know | 0 |
0%
|
| 2147483625 | No answer | 0 |
0%
|
| 11 | .D | 1587 |