Year constant 2015 US$ 2000 29159.370781095582 2001 29649.07592907576 2002 29363.862806300527 2003 28461.977535474605 2004 31908.025616102495 2005 43527.38746866182 2006 45785.57810561644 2007 46058.510731018556 2008 27151.000572372923 2009 46612.245786634085 2010 49040.6254446206 2011 42170.89590909904 2012 47172.09151232012 2013 39863.12106808317 2014 40149.255120971786 2015 34623.173467359564 2016 48980.709945065566 2017 41995.39076992122 2018 40474.7231091982 2019 26922.62824581667 2020 38998.892568601725 2021 76594.3789637181 2022 66134.23297566277