Visualizing Australia inter-state migration

As a follow-up to world migration visualization, I used 2011 Australian census data to visualize the inter-state migration. I experimented with different styles to connect origin and destination points. It is easier to visualize the direction of movement using sine wave connector lines as outgoing and incoming will be on opposite directions.
Github repo: https://github.com/asheshwor/aumig/blob/master/aumig.R