| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 15 |
0.7%
|
| -1 | Don't know | 544 |
27%
|
| 1 | France | 191 |
9.5%
|
| 2 | China | 476 |
23.7%
|
| 3 | India | 786 |
39.1%
|