| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 24 |
2%
|
| -1 | Don't know | 677 |
56.4%
|
| 1 | France | 203 |
16.9%
|
| 2 | China | 142 |
11.8%
|
| 3 | India | 154 |
12.8%
|