Year current US$ 1995 40661307198.917 1996 37343811633.8083 1997 37089029909.3122 1998 40864222065.2451 1999 38585932695.3751 2000 44596104997.2287 2001 34687104087.4926 2002 29763681345.8365 2003 47400572825.0224 2004 55115170353.8136 2005 67217052354.4709 2006 81790376745.3274 2007 68877334189.2241 2008 36997251181.3027 2009 61749217439.3289 2010 100167829339.562 2011 91482236799.797 2012 98645903796.1126 2013 95266371744.4388 2014 82117814650.3938 2015 90169334256.587 2016 80736087687.7501 2017 68718082738.2342 2018 66588557982.7469 2019 64713196112.1322 2020 56006852654.009 2021 95837042543.3341