Year	current US$
1979	29299000
1980	34313000
1981	40324000
1982	41801000
1983	37533000
1984	41224000
1985	41356000
1986	39856000
1987	47946000
1988	62967710.59
1989	59695163.49
1990	66933829.93
1991	65600072.38999999
1992	62556289.81
1993	61611161.99
1994	69275253.69999999
1995	77316288.32
1996	74663110.1
1997	72721270.73
1998	68787644.57
1999	72831558.99000001
2000	70740193
2001	73992797
2002	90629297
2003	94586225
2004	106510995
2005	122354856
2006	118467863
2007	144964683
2008	168744979
2009	147054820
2010	161447780
2011	196191441
2012	202840497
2013	201029669
2014	911963419
2015	917182206
2016	685149182
2017	417639507
2018	227538720
2019	236942441
2020	178420096