Year	current US$
1972	7461077.844311378
1973	12462548.152375517
1974	20382539.31002112
1975	15320649.690850943
1976	14677055.887686916
1977	14801097.773958363
1978	20888012.37095938
1979	25396779.266767338
1980	19118229.102618407
1981	30723029.36630603
1982	26881473.389304597
1983	22682284.47363324
1984	21778518.831191055
1985	14844290.258713106
1986	13602250.440181447
1987	37078471.201109104
1988	36927118.980426714
1989	39370586.04440782
1990	47009194.75089712
1991	45073418.93630877
1992	58763043.01845998
1993	48355082.417582415
1994	45046104.883125655
1995	58416600.63171176
1996	61419609.14432924
1997	61902608.76664341
1998	52442466.774048455
1999	64959791.60618085
2000	62411235.44564179
2001	61822359.29497755
2002	79642632.71618521
2003	84184163.96764022
2004	92863218.43983313
2005	124660648.2149689
2006	94149691.29643449
2007	111184736.98655812
2008	117267416.44284663
2009	115363004.20608819
2010	122362162.7670826
2011	157183931.72302607
2012	172497425.4530695
2013	173648065.39214918
2014	183775486.47286776
2015	182605395.57806006
2016	195679997.38331598
2017	195116053.70497823
2018	170295718.35877144
2019	177083172.34466013
2020	148289334.76018265
2021	201824808.59720078
2022	253957547.6671402
2023	258084914.8048321