Year	current US$
1976	-85075475.36778967
1977	968967920.5694964
1978	757650908.1438118
1979	1101457206.8210032
1980	1511431172.7693644
1981	4281429667.988369
1982	4358745262.29777
1983	4067609227.0316005
1984	3083130166.6085997
1985	4794382065.16815
1986	4959267891.024693
1987	5497521448.498454
1988	5899448389.181452
1989	6431610433.578964
1990	7275332122.79948
1991	6984134043.084576
1992	6974051092.714074
1993	6932201264.865469
1994	7569974759.972696
1995	8402195375.621072
1996	10745305213.012533
1997	11770395044.154903
1998	12913038448.458534
1999	13668711789.947294
2000	14835444049.381804
2001	15345561208.048042
2002	16827204367.805971
2003	18146698367.990707
2004	20559585887.05294
2005	22482022235.35954
2006	25373468069.086243
2007	28912929379.117706
2008	34255630393.80645
2009	39941121400.03721
2010	44705899575.75824
2011	48947351769.48218
2012	54123602722.84516
2013	59617667161.742905
2014	65315234303.71097
2015	71679214748.13412
2016	98876492673.10564
2017	103644090618.83546
2018	113952144933.91245
2019	127685359441.46703
2020	139078714577.72992
2021	150070816795.17908
2022	156212243987.9931
2023	152677021325.64838