Year constant 2010 US$ 2000 9724.26561615867 2001 10571.5638316968 2002 6972.07662619915 2003 6683.72738457135 2004 5725.0203437883 2005 5459.44620120374 2006 4985.88156061424 2007 5528.28076585765 2008 9251.07536480954 2009 6475.43254300202 2010 7227.81507233566 2011 7547.54197328627 2012 7384.77143481901 2013 7152.3148917162 2014 8826.80717381372 2015 9717.62628631656 2016 10371.3111111555 2017 10706.6949787516 2018 11509.528978985