Year	current US$
1970	9539999.991655342
1971	21210000.11637806
1972	30929999.71844254
1973	52150000.542402305
1974	104899999.6185303
1975	197860000.46133998
1976	43710000.88192526
1977	95359999.13513663
1978	80020000.49687913
1979	79970002.45936212
1980	139270002.36511233
1981	251400001.5258791
1982	174009996.08449635
1983	144939997.9114532
1984	175309996.5155125
1985	97559997.484088
1986	103210000.39577486
1987	168200002.4616715
1988	221220001.74969462
1989	244800000.6377691
1990	156500002.682209
1991	134109998.22616583
1992	191790003.41892242
1993	166550002.44081017
1994	169049999.9523163
1995	228780000.44822717
1996	300930009.33527917
1997	269459998.369217
1998	212529997.84424907
1999	197500002.0265579
2000	200639996.58822995
2001	273259998.9660084
2002	337710003.37600696
2003	390929997.9209902
2004	492969990.25344807
2005	595189996.242524
2006	650909998.6553187
2007	668149991.7507168
2008	895519987.4639515
2009	833669980.5259715
2010	841879981.9946288
2011	945109987.7841778
2012	751470011.234284
2013	730630011.9608632
2014	737419994.4734569
2015	828180003.6430364
2016	1101689994.335175
2017	1285929973.9599237
2018	1254819990.0388727
2019	952340005.8299297
2020	1082009992.5994883
2021	1012320009.4699855
2022	1056769986.1526495