"Mining capex going from approx 250b in 2013 to 18b in 2018
Sorry but these will have a huge impact whether directly or indirectly"
arh stats, unfortunately your stats rely on current committed projects and don't account for the projects in the pipeline which haven't reached FID.
Your numbers for 2018 say from now until then NO further projects will progress in Australia, which is highly unlikely and a good source for this is the BREE report just out in April