| Value | Category | Cases | |
|---|---|---|---|
| 1 | Did not occur | 2902 | 
                                    
                                    16.7%
                                 | 
| 2 | 1-2 times during the year | 2454 | 
                                    
                                    14.1%
                                 | 
| 3 | 3-4 times during the year | 2986 | 
                                    
                                    17.2%
                                 | 
| 4 | Once a month | 3742 | 
                                    
                                    21.6%
                                 | 
| 5 | Once a week | 2785 | 
                                    
                                    16.1%
                                 | 
| 6 | More than once a week | 2480 | 
                                    
                                    14.3%
                                 | 
| 7 | N/A | 400 | |
| 8 | Invalid | 12 | |
| 9 | Missing | 378 |