Year current US$ 2002 46620166.5539433 2003 47740741.3694726 2004 53334689.0206458 2005 53150239.3434497 2006 55465112.1882293 2007 54385821.9267613 2008 51598913.4375615 2009 48381809.2700582 2010 46853508.7487518 2011 48292669.4739577 2012 46907064.121934 2013 48659083.0547161 2014 36864800.2918195 2015 39527609.1740175 2016 27588639.7723445 2017 34553804.6818085 2018 42116218.0957633 2019 55002381.9227223 2020 65768944.564549 2021 73900166.6379001 2022 83373791.7881061 2023 90000000