| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 49 | 
                                                                 
                                    
                                    3.7%
                                 
                                                             | 
                                                        
                    
| 1 | France | 267 | 
                                                                 
                                    
                                    20.3%
                                 
                                                             | 
                                                        
                    
| 2 | China | 343 | 
                                                                 
                                    
                                    26.1%
                                 
                                                             | 
                                                        
                    
| 3 | India | 654 | 
                                                                 
                                    
                                    49.8%
                                 
                                                             |