Year	current US$
1970	7920173457.039128
1971	8516198503.412549
1972	9882648703.143618
1973	13174221693.231216
1974	16974109362.05468
1975	17491570692.113636
1976	19183382445.141068
1977	22063809791.783905
1978	26750690406.045856
1979	30192670610.897083
1980	33679664781.34915
1981	23640708387.65754
1982	19891607805.050327
1983	16354968836.291912
1984	16518434096.621058
1985	16371354711.597256
1986	22282198844.139427
1987	29333124797.406807
1988	35480165660.99835
1989	38634424651.92465
1990	49990834138.097534
1991	48081293561.72475
1992	53043104140.52697
1993	49285735774.25373
1994	53905776464.91439
1995	62762999452.654625
1996	60393355048.85994
1997	56354758682.90482
1998	57777617248.27739
1999	58593404930.19318
2000	56316259202.66679
2001	53584708567.28353
2002	53607884006.07853
2003	66685072366.74496
2004	83690121031.69907
2005	91341356615.7198
2006	97862125665.17633
2007	115862269152.35332
2008	134178198018.43747
2009	107153322691.09367
2010	111337132530.00021
2011	128252251484.43605
2012	117538249252.14847
2013	117028316331.72581
2014	123868881729.09761
2015	109240420185.15619
2016	115455750565.44775
2017	122958227194.94139
2018	138084759395.13715
2019	134014532517.64685
2020	126958980976.4984
2021	154503968734.10605
2022	157930969503.89166
2023	160129612367.4538