|
| 1970 | 1980 | 1990 | 2000 | 2005 | 2010 | 2020 |
| 65 or older | 991 | 1456 | 3395 | 5357 | 4367 | 5357 | 7701 |
| 80 or older | 101 | 178 | 483 | 952 | 676 | 952 | 1783 |
| B/A% | 10.2 | 12.2 | 14.2 | 17.8 | 15.5 | 17.8 | 23.3 |