Year	current US$
1976	157754948151.27457
1977	179096028767.84528
1978	211854940154.986
1979	256767314050.3653
1980	307745500689.3671
1981	307160896782.8724
1982	300532915692.50244
1983	290395771862.33606
1984	306743002077.03253
1985	320889479305.43524
1986	388596152249.89484
1987	463801279891.9437
1988	521032208766.8164
1989	560601605299.0947
1990	687523397855.8398
1991	708784755462.5759
1992	795565207668.8118
1993	772429713539.808
1994	823392690314.8597
1995	935357016864.5638
1996	984813176429.1533
1997	996116775439.7048
1998	1038938841680.3087
1999	1123323413970.4072
2000	1192282327780.5664
2001	1198560930763.6008
2002	1266162147080.903
2003	1440516667763.648
2004	1718129480174.534
2005	1862481020180.924
2006	2046513082110.3105
2007	2385055659895.142
2008	2661415963836.078
2009	2376191760440.7207
2010	2526504626375.9805
2011	2774017815609.1294
2012	2798663309066.243
2013	2928041468487.2134
2014	3136735810102.92
2015	3016786412321.842
2016	3087906451108.4854
2017	3338064556335.0425
2018	3610045665429.559
2019	3758594184304.522
2020	3242279563187.0195
2021	3733044096317.606
2022	4277481576527.466
2023	4680408545055.678