| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 4 |
0.3%
|
| -1 | Don't know | 371 |
30.3%
|
| 1 | France | 74 |
6.1%
|
| 2 | China | 162 |
13.2%
|
| 3 | India | 612 |
50%
|