Year current US$ 1995 228335521.177058 1996 555691254.40397 1997 392514285.939726 1998 202442614.084957 1999 491400189.57731 2000 1198212373.02401 2001 731866198.100655 2002 375545950.307129 2003 634199422.3308 2004 1379588147.35472 2005 3196850749.33725 2006 8149079645.64961 2007 11196800894.0338 2008 17869411576.4837 2009 13664098153.6474 2010 19678661657.2159 2011 27039761554.085 2012 31161778888.6797 2013 31500815461.6599 2014 27032344084.4907 2015 23790543425.2351 2016 23672191989.4347 2017 17455327770.6619 2018 15410405365.47 2019 16334853784.0603 2020 13781988139.5961 2021 14468113825.809 2022 13654715740.4529 2023 13942114198.8828