Year	current US$
1972	896711111.4299414
1973	1293254297.0433347
1974	1844581840.698643
1975	2339644921.412176
1976	2324713913.9808035
1977	2553086825.41396
1978	3081320567.086009
1979	3545547564.65702
1980	4774406975.927525
1981	7086220976.269998
1982	8023738043.567913
1983	7732897947.390221
1984	6044302067.59297
1985	4597413813.39111
1986	4717057675.740901
1987	5704318647.662619
1988	7467110575.549402
1989	9569655302.075382
1990	12718772988.083033
1991	13729674973.228031
1992	16102048333.299215
1993	18497505607.419277
1994	22939300018.05843
1995	25928424023.28244
1996	27121554990.428837
1997	26336574872.023155
1998	22769038032.745747
1999	24063683044.010883
2000	25895040304.414864
2001	25705766378.44311
2002	27750432120.541454
2003	30249399699.610695
2004	39350482232.6767
2005	45420760365.237305
2006	58123646890.99621
2007	73300429853.76988
2008	88918215160.1485
2009	80770719549.6506
2010	100118493347.43108
2011	118975170945.3717
2012	129142572709.3907
2013	141714856549.1888
2014	153465056627.5998
2015	152910879566.49078
2016	151777316722.17108
2017	173202744537.1763
2018	211008457874.3487
2019	223399727548.73364
2020	216290344206.9462
2021	282293639668.02826
2022	336240522243.7132
2023	327704813444.8763