Year	current US$
1970	73250000.13038518
1971	81570001.41404569
1972	103130000.53353609
1973	121930002.25722791
1974	141809998.2142446
1975	168470001.24491733
1976	153099999.1409481
1977	176090001.1081254
1978	221160007.17878318
1979	271389998.95192635
1980	281840005.1370261
1981	229879999.22595963
1982	193199996.9985338
1983	164409999.20293695
1984	153230002.33806673
1985	175539999.49991712
1986	242740005.49502704
1987	242470003.16903028
1988	250229994.79621696
1989	197559998.8531321
1990	272769998.7851083
1991	181719999.08424902
1992	243549999.13647777
1993	188339999.51370057
1994	182830000.43034568
1995	207170000.27745962
1996	212480000.3431737
1997	186430002.9110164
1998	262260003.2128394
1999	158349999.52092758
2000	177260001.28872693
2001	217039997.55717802
2002	336479996.4800478
2003	990360004.4324999
2004	497839987.17181396
2005	387939999.1333483
2006	571780010.3612245
2007	609740008.8496511
2008	574200002.9906635
2009	710310005.3761156
2010	1195879988.5809424
2011	755510000.8789448
2012	745890004.6031926
2013	515679999.87676704
2014	489649998.63319147
2015	387899996.3551758
2016	418919998.62343055
2017	400090005.0159549
2018	420839998.6270816
2019	381070003.4126635
2020	404450003.10055953
2021	479180000.65721506
2022	413839994.2982941