Year	current US$
1975	43622808.032953
1979	67289410.23170993
1980	81062044.59180017
1981	103557124.51010393
1982	121596349.23278323
1983	96364216.06850202
1984	135801043.49585706
1985	131260187.21389472
1986	80499845.3749006
1987	159131824.09736344
1988	191104469.23337418
1989	215988094.5963455
1990	189785732.26171413
1991	207154946.53487617
1992	284722503.3140277
1993	190013974.52797502
1994	133346016.77687423
1995	147230538.21972555
1996	162048056.60694304
1997	376006385.99879795
1998	180358118.60596234
1999	126656059.01344617
2000	78048458.29617117
2001	77438929.8456448
2002	109591312.99600936
2003	152407491.47740382
2004	121294706.2776942
2005	116024223.90437645
2006	126704805.93973832
2007	181874271.3188731
2008	164152206.85029715
2009	162521151.2420551
2010	182066447.20685202
2011	181946632.71109968
2012	201590414.58337748
2013	195852698.10605583
2014	209296478.39884016
2015	186621814.78012636
2016	223752520.46844006
2017	264281780.9316778
2018	295614451.46527517
2019	273621755.59584504
2020	325377959.80637157
2021	329509273.7656037
2022	363697750.32965785
2023	467774728.297941