Year	current US$
1976	32695172.5897079
1977	42023598.8212986
1978	39368391.7651466
1979	42321955.3162125
1980	42401306.7352194
1981	37829159.2142841
1982	42738961.3361534
1983	45902521.0694201
1984	40990516.6133251
1985	55357731.5780941
1986	56359503.7621742
1987	80730245.0812753
1988	81332707.80446
1989	74738034.4246863
1990	76969365.0466756
1991	65100093.7251869
1992	75755926.1666369
1993	57690218.286324
1994	42078709.1881349
1995	36891764.1660585
1996	27566288.8051844
1997	19323245.8510309
1998	8316973.76702968
1999	43483582.8206316
2000	28196818.8690417
2001	45479478.0687327
2002	77123428.2731056
2003	92617800.6630992
2004	139362725.6678
2005	174391987.426298
2006	254525770.70586
2007	364462266.13089
2008	361467111.500192
2009	397876708.938471
2010	382190200.497035
2011	338617823.352149
2012	375841714.655623
2013	475334069.480303
2014	510930777.488313
2015	494495560.716106
2016	572736752.547996
2017	617362329.826463
2018	606003781.270023
2019	737990665.417386
2020	674569597.415375
2021	711407250.739642
2022	646635279.566004
2023	750557461.648799