Year	current US$
1970	363793625656.6879
1971	412651696683.9785
1972	498557168872.555
1973	642108971629.6946
1974	728447041423.161
1975	867834312033.0543
1976	903663018894.5846
1977	1030345098861.1606
1978	1247460187390.005
1979	1519510767703.356
1980	1722080173284.1677
1981	1513819463237.7783
1982	1467113328237.0903
1983	1427200446877.3037
1984	1360943286316.6038
1985	1396346649344.3035
1986	1934644309076.6536
1987	2405580363269.293
1988	2615530997550.5444
1989	2674063037991.2993
1990	3335195579171.054
1991	3470509452779.9917
1992	3847894662817.553
1993	3524372812117.866
1994	3701229887933.5103
1995	4238593699758.2534
1996	4313925664326.3735
1997	3923720924471.919
1998	4021044852322.007
1999	4013696263607.807
2000	3667201744078.0894
2001	3712723235624.8354
2002	4025396513676.8164
2003	4977398825856.577
2004	5680604365279.904
2005	5907227400017.317
2006	6225438896001.669
2007	7084795027113.724
2008	7839819153922.154
2009	7299910908157.8955
2010	7101254497477.406
2011	7634848179723.263
2012	7099566523690.523
2013	7372508961601.186
2014	7472559270028.575
2015	6376884787887.384
2016	6517655340354.72
2017	6859476004712.791
2018	7387296749748.981
2019	7178589443315.654
2020	6797609989844.277
2021	7515690048337.624
2022	7444473375605.177
2023	8148148116496.097