| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 3 |
0.2%
|
| -1 | Don't know | 487 |
32.5%
|
| 1 | France | 128 |
8.5%
|
| 2 | China | 104 |
6.9%
|
| 3 | India | 777 |
51.8%
|