| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 28 |
2.8%
|
| -1 | Don't know | 535 |
53.5%
|
| 1 | France | 74 |
7.4%
|
| 2 | China | 122 |
12.2%
|
| 3 | India | 241 |
24.1%
|