1australian commodities vol 13 no 2 june quarter 2006 development projects 2005 06 2000 01 1995 96 1990 91 1985 86 1980 81 b 1 0 5 3 in dollars a other base metals gold energy petroleum australian private minerals exploration expenditure and major april listing ian haine commodity analysts resource markets infrastructure group as outlined this article the record numbers of that have been recently completed are currently committed to or under construction will add signifi cantly sector s production export capacity short medium term addition cant number large scale at less advanced planning stages active consideration for is expected provide fi rm platform future growth beyond it important recognise ability australia sustain its strong recent expand contribution national economic performance longer terms depends critically on