| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 108 | 
                                    
                                    25.1%
                                 | 
| -5 | Refund still outstanding | 23 | 
                                    
                                    5.3%
                                 | 
| 1 | One week or less | 32 | 
                                    
                                    7.4%
                                 | 
| 2 | 9 | 
                                    
                                    2.1%
                                 | |
| 3 | 17 | 
                                    
                                    4%
                                 | |
| 4 | 85 | 
                                    
                                    19.8%
                                 | |
| 5 | 62 | 
                                    
                                    14.4%
                                 | |
| 6 | 12 | 
                                    
                                    2.8%
                                 | |
| 7 | 5 | 
                                    
                                    1.2%
                                 | |
| 8 | 20 | 
                                    
                                    4.7%
                                 | |
| 9 | 1 | 
                                    
                                    0.2%
                                 | |
| 10 | 12 | 
                                    
                                    2.8%
                                 | |
| 12 | 17 | 
                                    
                                    4%
                                 | |
| 13 | 1 | 
                                    
                                    0.2%
                                 | |
| 14 | 2 | 
                                    
                                    0.5%
                                 | |
| 15 | 2 | 
                                    
                                    0.5%
                                 | |
| 16 | 4 | 
                                    
                                    0.9%
                                 | |
| 17 | 1 | 
                                    
                                    0.2%
                                 | |
| 20 | 10 | 
                                    
                                    2.3%
                                 | |
| 24 | 3 | 
                                    
                                    0.7%
                                 | |
| 25 | 1 | 
                                    
                                    0.2%
                                 | |
| 50 | 1 | 
                                    
                                    0.2%
                                 | |
| 90 | 1 | 
                                    
                                    0.2%
                                 | |
| 120 | 1 | 
                                    
                                    0.2%
                                 | |
| Sysmiss | 986 |