Year current US$ 2000 937.4938761896909 2001 965.9467114428229 2002 1088.0779549000226 2003 1354.4602698667481 2004 1571.3489126627856 2005 1663.6970599359206 2006 1785.711552497013 2007 2050.024396292353 2008 2299.1229270388963 2009 2206.8102096615994 2010 2192.755376476477 2011 2374.3753490490003 2012 2276.965930373366 2013 2378.017479294871 2014 2426.120309827147 2015 2099.721384561095 2016 2091.5411285856494 2017 2188.058845355721 2018 2340.778058970516 2019 2330.0778118417356 2020 2521.784141980952 2021 2868.789413870735