| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 13 |
0.7%
|
| -1 | Don't know | 726 |
40.1%
|
| 1 | France | 111 |
6.1%
|
| 2 | China | 309 |
17.1%
|
| 3 | India | 651 |
36%
|