| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 3 |
0.3%
|
| -1 | Don't know | 467 |
38.9%
|
| 1 | France | 38 |
3.2%
|
| 2 | China | 142 |
11.8%
|
| 3 | India | 550 |
45.8%
|