Year current US$ 1993 4191100820.322837 1994 4473277261.033051 1995 4813387883.556255 1996 5170851866.302509 1997 5624058836.789901 1998 6224691289.353654 1999 5987807708.688246 2000 5825202248.226297 2001 6441897771.014234 2002 7850350381.46369 2003 10695039521.228546 2004 13051318012.42236 2005 14751973635.120008 2006 18691908167.10576 2007 24315355871.88612 2008 25165194082.320198 2009 18628996943.595444 2010 18269990367.653915 2011 21863960356.89693 2012 22638030359.56172 2013 24441771976.632614 2014 25704716627.92344 2015 21990282537.63241 2016 23204671882.536243 2017 25832335865.945923 2018 29789431071.444683 2019 30018985490.59603 2020 31423017689.701252 2021 37177492491.25522 2022 38557294800.46902 2023 40974387019.80072