Year	current US$
1972	63031453.14358312
1973	81155487.27196126
1974	92126003.95285895
1975	104514806.57802369
1976	108859050.85551138
1977	105069172.7868422
1978	113781137.51563759
1979	141082172.32935235
1980	142415317.09284782
1981	131672398.50382142
1982	128151573.39613757
1983	121217383.30248706
1984	111260595.43733041
1985	108884883.68042348
1986	113087674.57230416
1987	119790261.5927337
1988	155673431.66933584
1989	174820780.1829773
1990	178017394.63867304
1991	168886225.9521426
1992	171885157.26045617
1993	182528821.6746933
1994	141252177.57574168
1995	172541822.71816626
1996	232154485.46705794
1997	236981729.4002019
1998	242817073.15947393
1999	249423390.43213728
2000	255297894.92874992
2001	258039730.31805724
2002	262361100.87906474
2003	290583029.80816954
2004	344137716.2954502
2005	418700417.152532
2006	463452827.2922485
2007	502377872.1758174
2008	565034405.9976656
2009	605657016.2480927
2010	662708484.6858561
2011	695863219.1571153
2012	705572037.9676216
2013	743213382.4021835
2014	765222316.700863
2015	800555759.2833259
2016	839309809.2510148
2017	841236835.7713386
2018	851176551.3905979
2019	895730561.5748582
2020	860537831.9798878
2021	837847102.5423496
2022	813038297.4396882
2023	908197656.3756223