| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 1 |
0.1%
|
| -1 | Don't know | 593 |
49.4%
|
| 1 | France | 126 |
10.5%
|
| 2 | China | 188 |
15.7%
|
| 3 | India | 292 |
24.3%
|