Year	current US$
1970	118667321.78224155
1971	134734846.62101096
1972	143634769.0564892
1973	330208801.56395924
1974	381380264.7150989
1975	506735712.12932116
1976	495081629.7538184
1977	660209242.2887205
1978	871238087.9450682
1979	1027634545.7352709
1980	1118896714.8288438
1981	1032637175.0568014
1982	989329926.110688
1983	1011635684.0576577
1984	1063721041.8481177
1985	1078878162.4983406
1986	1612158480.5553877
1987	1693637528.2019763
1988	1832812705.1852543
1989	2299313222.569172
1990	2960720723.0925503
1991	2403422527.6630855
1992	2774987973.2768903
1993	2118311907.6698654
1994	1803136607.2955549
1995	2047468141.2698677
1996	2229200631.497342
1997	1792770102.728639
1998	2089555540.3659902
1999	1995162896.9410543
2000	1634667643.278245
2001	1811741097.3330305
2002	1990927873.7163246
2003	2429986643.8793263
2004	2731024338.4835176
2005	2877940126.66993
2006	3110752846.397992
2007	3677141692.7212806
2008	4216575845.5614133
2009	4246623283.09873
2010	4404139032.2347765
2011	5021224207.664851
2012	5055872060.29357
2013	5680506393.13708
2014	6278553005.785251
2015	5442339301.953393
2016	5671152360.242149
2017	5967277898.517498
2018	6513218328.428762
2019	6357215780.398991
2020	6429020667.45774
2021	6649439900.470616
2022	6146854787.186454
2023	6619534729.850638