| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 52 |
3.5%
|
| -1 | Don't know | 789 |
52.6%
|
| 1 | France | 172 |
11.5%
|
| 2 | China | 306 |
20.4%
|
| 3 | India | 181 |
12.1%
|