Year current US$ 2005 178199685.09674102 2006 181080670.83358797 2007 185756950.855255 2008 184985766.887665 2009 173798990.726471 2010 167588077.068329 2011 169674704.07485998 2012 180379824.638367 2013 186788260.4599 2014 192978013.51547202 2015 199171348.57177702 2016 210082709.312439 2017 210153423.786163 2018 210229245.185852 2019 208686515.80810502 2020 210948524.47509798 2021 199954856.87255898 2022 198778598.7854