Year	current US$
1976	140387112.2236316
1977	142115366.80294
1978	158519618.2224548
1979	194035993.04260486
1980	118943944.34776814
1981	140658433.65364367
1982	140721357.91511652
1983	125147357.81039107
1984	125794065.9837701
1985	137477891.3468773
1986	186390410.82971358
1987	228370122.9758747
1988	233670505.98222542
1989	226954287.23599514
1990	288896258.187945
1991	284800407.7098406
1992	322834353.9455362
1993	298629988.3414716
1994	308351928.443333
1995	371635505.0928843
1996	400765168.75048435
1997	347930898.6953572
1998	338896724.62191546
1999	217026985.99147582
2000	266042940.60875234
2001	283646377.1236466
2002	251332681.3964355
2003	301149233.1498603
2004	347111533.32377887
2005	323006022.4978559
2006	344864920.33714956
2007	356649507.8057956
2008	407094715.82412976
2009	354257536.0296372
2010	364307896.20716983
2011	426601453.7055906
2012	426755805.2965906
2013	409428143.2111244
2014	417319568.72166485
2015	368859590.32082313
2016	390074999.68417543
2017	410685085.7134372
2018	377802180.08864164
2019	390826768.0365609
2020	358426919.8313373
2021	376713752.5547399
2022	459907735.5372088
2023	552563140.3294547