| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 50782 |
97.7%
|
| 2 | Once | 854 |
1.6%
|
| 3 | Twice | 235 |
0.5%
|
| 4 | 3 or 4 times | 70 |
0.1%
|
| 5 | 5 times or more | 28 |
0.1%
|
| 2147483623 | Refusal | 0 |
0%
|
| 2147483624 | Don't know | 0 |
0%
|
| 2147483625 | No answer | 0 |
0%
|
| 11 | .D | 489 |