Year current US$ 1977 1587429769.2534287 1978 1846856291.831375 1979 2316844407.1024556 1980 2696595240.6403565 1981 2935237579.1995153 1982 2756759142.985811 1983 2483556505.181412 1984 2488976813.354517 1985 2839819314.2250385 1986 2700715247.6806173 1987 2923465300.684437 1988 2957360959.499566 1989 3213817072.5074487 1990 3353060543.874859 1991 3233635112.192127 1992 3508538288.0291386 1993 3705036445.945212 1994 3921569236.29869 1995 4530063233.493085 1996 5210193357.456902 1997 5639105229.557111 1998 6310492706.182622 1999 6786008412.306705 2000 7505729689.920303 2001 8452562726.917539 2002 9222040021.070047 2003 9266922422.34328 2004 11458923204.471174 2005 13299500449.61642 2006 14682705382.758886 2007 17951188459.181202 2008 20809832254.464817 2009 19893287482.072094 2010 21259578025.817093 2011 26159882798.632233 2012 29032824160.016422 2013 28756852402.091568 2014 30661670797.69705 2015 33133092104.383266 2016 32650321575.29579 2017 34833414328.20989 2018 39405170877.1047 2019 42718410243.76891 2020 29834437996.993656 2021 36669431594.42283 2022 42800178882.21329