| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1=Never | 4680 | 
                                
                                88.5%
                             | 
| 2 | 2=Once | 292 | 
                                
                                5.5%
                             | 
| 3 | 3=2 or 3 times | 153 | 
                                
                                2.9%
                             | 
| 4 | 4=4 or 5 times | 54 | 
                                
                                1%
                             | 
| 5 | 5=6 or more times | 60 | 
                                
                                1.1%
                             | 
| 96 | 96=Other | 13 | 
                                
                                0.2%
                             | 
| 97 | 97=Refused | 5 | 
                                
                                0.1%
                             | 
| 98 | 98=Don't know | 0 | 
                                
                                0%
                             | 
| 99 | 99=Not applicable | 32 | 
                                
                                0.6%
                             |