Year	current US$
1969	29780000.032857098
1970	52539999.9227375
1971	71690000.1950562
1972	63210000.9247661
1973	102130000.477657
1974	127319998.035207
1975	257170002.63743103
1976	177239998.182282
1977	231389998.391271
1978	248199997.33567202
1979	306200000.420213
1980	316289998.073131
1981	314359997.756779
1982	345689996.290952
1983	367599998.343736
1984	325850000.053644
1985	323549998.559058
1986	304479995.727539
1987	327389996.539801
1988	426629997.462034
1989	320490000.236779
1990	397000000.843778
1991	467420000.771061
1992	628359997.570515
1993	464159999.012947
1994	499890002.222732
1995	340820000.831038
1996	78109998.9041686
1997	203260002.648458
1998	128210000.01207
1999	184200001.12056702
2000	191180000.245571
2001	175080000.329763
2002	177520000.310615
2003	154160002.332181
2004	127209998.894483
2005	268009998.20604897
2006	130370000.22828598
2007	127920001.424849
2008	154229999.27029
2009	124549999.402836
2010	107729998.767376
2011	154510000.996292
2012	134509047.91033098
2013	129735851.83871898
2014	106224270.261824
2015	83784888.7192085
2016	85405727.4162769
2017	86975160.4022458
2018	63476523.9860862
2019	94196676.2705706
2020	97126652.1560028
2021	110706759.12872
2022	116282034.07675025