Year	current US$
1970	69875000
1971	91893181.81818181
1972	127682982.09834579
1973	169960057.69444138
1974	248076038.0190095
1975	235718932.98633704
1976	266579019.59707963
1977	355219490.11917335
1978	428360444.10018075
1979	502433352.2404992
1980	574099549.7748874
1981	603683175.9918053
1982	582840788.5681901
1983	504908907.2085272
1984	480428223.90569735
1985	527486924.11287546
1986	722038185.8788153
1987	1043729432.3270558
1988	1219243525.3638349
1989	1096205554.5231743
1990	1241164851.9828837
1991	1368721750.3470557
1992	1445058588.0140896
1993	1298959427.956073
1994	1327209769.4740393
1995	1513407655.077854
1996	1571216090.225564
1997	1573756133.2669528
1998	1807958829.340613
1999	1984190291.6003666
2000	2050365421.7970896
2001	1890071378.2761233
2002	2284716811.929083
2003	2886449621.2960668
2004	3359059988.5741477
2005	4121526999.112441
2006	4245222043.317184
2007	5154313121.53618
2008	4385200499.386568
2009	3328566561.8448634
2010	3413181209.3305345
2011	3786468258.4591627
2012	3651907859.6299334
2013	3926469414.8661575
2014	4310378031.138992
2015	4103819029.4395633
2016	4784455834.369964
2017	5854981410.053105
2018	6341262262.174016
2019	6068494840.389694
2020	6071654708.1559515
2021	7060279614.729752
2022	7352273754.52899
2023	7962723724.922834