Year constant 2010 US$ 2004 4607996821.91354 2005 4120897104.48679 2006 4883491193.40074 2007 4412805358.09703 2008 4577013809.53245 2009 5048558802.91596 2010 5871934419.46356 2011 5921753035.77685 2012 6422019314.59161 2013 6614298088.75326