| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 35603 |
63.5%
|
| 1 | 1 | 10445 |
18.6%
|
| 2 | 2 | 5702 |
10.2%
|
| 3 | 3 | 3282 |
5.9%
|
| 4 | Very often | 1027 |
1.8%
|
| 2147483623 | Refusal | 0 |
0%
|
| 2147483624 | Don't know | 0 |
0%
|
| 2147483625 | No answer | 0 |
0%
|
| 11 | .D | 693 |