Year	current US$
1967	453928609.3840896
1968	623034050.8156562
1969	972392638.0368098
1970	1246575342.4657533
1971	1474251387.40972
1972	2065060240.9638555
1973	2910843373.493976
1974	4330120481.927711
1975	6196867469.8795185
1976	7722650602.409638
1977	9220240963.855421
1978	10565999608.171011
1979	10760279943.37714
1980	15128152205.42835
1981	18287640586.810806
1982	20360890729.241848
1983	23830807207.720486
1984	21115567426.768112
1985	21618280538.097214
1986	22104516510.598747
1987	20688329529.166233
1988	24529683337.458908
1989	28980562404.747196
1990	34716180155.16813
1991	37166760181.24001
1992	38633196382.12343
1993	44685358407.10275
1994	52308223533.495316
1995	61508394489.53151
1996	71854186056.44025
1997	65388507014.84533
1998	26180242916.84281
1999	30994562178.883434
2000	36710074220.21727
2001	36163564857.241455
2002	41879334582.25335
2003	60098225365.00776
2004	61785619706.58954
2005	71699880267.40536
2006	92601703158.25594
2007	107709637895.19746
2008	141926445029.5586
2009	167189927754.61835
2010	248275876113.28668
2011	294539905352.2456
2012	321911605885.4315
2013	308719296469.6346
2014	308224969060.0032
2015	293230988257.18146
2016	315521927322.14514
2017	342371119515.1891
2018	360319374915.6682
2019	378033529888.4103
2020	342534471649.7135
2021	373143919782.0988
2022	392370786298.2121
2023	418478342264.2762