| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 26 | 
                                    
                                    0.1%
                                 | 
| 1 | Never | 3157 | 
                                    
                                    12.4%
                                 | 
| 2 | About once a year or less | 1783 | 
                                    
                                    7%
                                 | 
| 3 | About once every several months | 2332 | 
                                    
                                    9.2%
                                 | 
| 4 | About once a month | 3287 | 
                                    
                                    12.9%
                                 | 
| 5 | About once a week | 9233 | 
                                    
                                    36.4%
                                 | 
| 6 | More than once a week | 5356 | 
                                    
                                    21.1%
                                 | 
| 9 | Don't know | 223 | 
                                    
                                    0.9%
                                 | 
| 998 | Refused | 0 | 
                                    
                                    0%
                                 |