| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 9 | 
                                    
                                    21.4%
                                 | 
| -5 | Refund still outstanding | 11 | 
                                    
                                    26.2%
                                 | 
| 1 | One week or less | 1 | 
                                    
                                    2.4%
                                 | 
| 2 | 2 | 
                                    
                                    4.8%
                                 | |
| 3 | 2 | 
                                    
                                    4.8%
                                 | |
| 4 | 3 | 
                                    
                                    7.1%
                                 | |
| 5 | 1 | 
                                    
                                    2.4%
                                 | |
| 6 | 1 | 
                                    
                                    2.4%
                                 | |
| 8 | 3 | 
                                    
                                    7.1%
                                 | |
| 12 | 1 | 
                                    
                                    2.4%
                                 | |
| 14 | 2 | 
                                    
                                    4.8%
                                 | |
| 15 | 1 | 
                                    
                                    2.4%
                                 | |
| 16 | 1 | 
                                    
                                    2.4%
                                 | |
| 20 | 1 | 
                                    
                                    2.4%
                                 | |
| 24 | 1 | 
                                    
                                    2.4%
                                 | |
| 48 | 1 | 
                                    
                                    2.4%
                                 | |
| 155 | 1 | 
                                    
                                    2.4%
                                 | |
| Sysmiss | 603 |