Year	current US$
1969	29399999.6185303
1970	32110000.6103516
1992	101680000.30517599
1993	182360000.61035198
1994	285929992.675781
1995	299459991.455078
1996	217720001.220703
1997	242820007.32421902
1998	277000000
1999	267000000
2000	278100006.10351604
2001	337589996.33789104
2002	366670013.42773396
2003	403290008.544922
2004	420520019.53125
2005	322399993.89648396
2006	343489990.234375
2007	357290008.544922
2008	431550018.310547
2009	430700012.207031
2010	499929992.675781
2011	557039978.027344
2012	613092163.085938
2013	514556701.660156
2014	648877136.230469
2015	735385009.765625
2016	680025695.800781
2017	852932617.1875
2018	712541992.1875
2019	704895629.882813
2020	729031311.035156
2021	683015991.210938
2022	800873908.996582