Year	current US$
1980	6049461538.461538
1981	5762999999.999999
1982	4832800000
1983	4156777777.7777777
1984	4235833333.3333335
1985	4312421052.631579
1986	4327294117.647059
1987	8446384615.384616
1988	7325529411.764707
1989	7199388888.888889
1990	7263181818.181818
1991	3906693548.387097
1992	4049072164.9484534
1993	4905559179.531782
1994	4333265682.656827
1995	12397314317.190454
1996	8106251651.310649
1997	5555186788.110203
1998	8182216344.629899
1999	7277463677.422866
2000	7154988402.350143
2001	7586877514.065953
2002	9064427352.279156
2003	11387113883.402916
2004	14139446222.451906
2005	15988415210.150604
2006	18201094488.62831
2007	23959581525.542336
2008	28992578061.605675
2009	29181944590.571354
2010	30203042093.1336
2011	33251054017.50765
2012	31042971818.958157
2013	32500480070.618595
2014	33567664040.21193
2015	29610777739.959156
2016	31079667213.76422
2017	34375138912.95558
2018	40378212668.31713
2019	42291865376.91031
2020	43225617590.37552
2021	52321990687.54913
2022	53825999246.25821
2023	60269792668.877754