you are actually correct evand..
I made an assumption about emigration declining which was obviously wrong.
Here is the net migration rate chart which shows a down trend.
http://www.indexmundi.com/g/g.aspx?c=as&v=27
Thanks
Harris
This chart is an incredibly straight line. It doesn't look real.
What about the source: "CIA World Factbook" What is this?
Isn't there some data from the Australian Bureau of Statistics about this?