| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 37 |
2.9%
|
| -1 | Don't know | 574 |
44.5%
|
| 1 | France | 77 |
6%
|
| 2 | China | 142 |
11%
|
| 3 | India | 459 |
35.6%
|