| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1158 | 
                                    
                                    90.5%
                                 | 
| 2 | 1 or 2 times | 45 | 
                                    
                                    3.5%
                                 | 
| 3 | 3 to 9 times | 32 | 
                                    
                                    2.5%
                                 | 
| 4 | 10 to 19 times | 19 | 
                                    
                                    1.5%
                                 | 
| 5 | 20 or more times | 26 | 
                                    
                                    2%
                                 | 
| Sysmiss | 77 |