| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 37294 |
66.5%
|
| 1 | 1 | 9121 |
16.3%
|
| 2 | 2 | 5512 |
9.8%
|
| 3 | 3 | 3039 |
5.4%
|
| 4 | Very often | 1085 |
1.9%
|
| 2147483623 | Refusal | 0 |
0%
|
| 2147483624 | Don't know | 0 |
0%
|
| 2147483625 | No answer | 0 |
0%
|
| 11 | .D | 701 |