| Value | Category | Cases | |
|---|---|---|---|
| 1960 | [1960,1980) | 73 | 
                                    
                                    3.3%
                                 | 
| 1980 | [1980,1990) | 207 | 
                                    
                                    9.4%
                                 | 
| 1990 | [1990,2000) | 263 | 
                                    
                                    12%
                                 | 
| 2000 | [2000,2010) | 901 | 
                                    
                                    41.1%
                                 | 
| 2010 | [2010,2020) | 750 | 
                                    
                                    34.2%
                                 | 
| Sysmiss | 4770 |