S&P/ASX 200 going back 20 years

Here's a monthly chart of the S&P/ASX 200 going back to 1995.

Source: Yahoo Finance

In the decade from 1995 to 2005 the index went from 2000 to 4000.
Then from 2005 to the beginning of 2015 it went from 4000 to 6000.
So perhaps we can pencil in 8000 for 2025??

From the GFC low of 3000 in 2009 it only took six years to make it up to 6000.

So nine years should be plenty of time to get from the current 5000 to 8000 ;-)