Year	current US$
1970	2400000000
1971	2500000000
1972	3275000000
1973	4340000000
1974	5927500000
1975	5580000000.000001
1976	4630000000
1977	4854000000
1978	5154117647.058824
1979	6791200000
1980	6651176470.588235
1981	6635701754.385964
1982	7869176954.732511
1983	8947277580.071175
1984	7841708731.241473
1985	6276484858.766646
1986	7638047452.614598
1987	9348622852.125925
1988	10859976859.090626
1989	10446275307.868921
1990	13820610554.508482
1991	20490711684.436836
1992	22725742751.41312
1993	23407188438.571075
1994	25970499153.133408
1995	30328558429.913994
1996	33413565184.69781
1997	33254588624.108543
1998	31552265203.547276
1999	32130679276.27605
2000	34852185514.92409
2001	34123628171.29134
2002	30056368778.75807
2003	29903264970.027008
2004	31714389335.118248
2005	34515789157.02921
2006	37268562772.11724
2007	44507906331.39407
2008	50719509197.32442
2009	44232533886.020905
2010	50882147914.86972
2011	62201507534.425995
2012	62401862095.64497
2013	65873115573.598404
2014	71189605707.21857
2015	66225224733.07325
2016	73401809021.23813
2017	82034979888.98701
2018	89808353075.8661
2019	94771292278.39604
2020	99437763505.52206
2021	123698981643.15005
2022	141475892523.91605
2023	130982621138.03584