| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 360 |
30%
|
| -1 | Don't know | 6 |
0.5%
|
| 1 | France | 73 |
6.1%
|
| 2 | China | 94 |
7.8%
|
| 3 | India | 667 |
55.6%
|