| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 8 |
0.5%
|
| -1 | Don't know | 823 |
47.3%
|
| 1 | France | 190 |
10.9%
|
| 2 | China | 254 |
14.6%
|
| 3 | India | 466 |
26.8%
|