| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 12 |
0.6%
|
| -1 | Don't know | 1049 |
50.7%
|
| 1 | France | 185 |
9%
|
| 2 | China | 307 |
14.9%
|
| 3 | India | 514 |
24.9%
|