Fourth, the old-age dependency ratio is rising, but less quickly than in most other countries. Our relative youth and higher fertility rates mean that the dependency ratio is expected to remain lower than elsewhere over the next generation. Beyond that, on current projections, it is then expected to increase quite significantly.
https://www.rba.gov.au/speeches/2018/sp-gov-2018-08-08.html  7/18  8/8/2018  Demographic Change and Recent Monetary Policy | Speeches | RBA  Graph 7  So, in summary, we are better placed than many other countries. The movement to Australia of large numbers of young people over the past decade has changed our demographic profile in a positive way.