| Value | Category | Cases | |
|---|---|---|---|
| 1 | Younger than 36 years | 3305 | 
                                    
                                    3.6%
                                 | 
| 2 | 36 – 40 years | 12725 | 
                                    
                                    13.9%
                                 | 
| 3 | 41 – 45 years | 25864 | 
                                    
                                    28.2%
                                 | 
| 4 | 46 – 50 years | 27796 | 
                                    
                                    30.3%
                                 | 
| 5 | 51 years or older | 22145 | 
                                    
                                    24.1%
                                 | 
| 7 | N/A | 81 | |
| 8 | Invalid | 260 | |
| 9 | Missing | 9856 |