Year	current US$
1974	35898763.76224537
1975	52609992.128558144
1976	55116019.07498362
1977	65573186.880610876
1978	75539806.42172083
1979	86037319.16168244
1980	97363892.8746454
1981	132546305.044792
1982	123719496.10234825
1983	82686455.94529866
1984	83429325.73017749
1985	102389922.64654666
1986	107708241.80919771
1987	126107784.3479504
1988	110818859.78984581
1989	103507965.3194168
1990	113412756.1334611
1991	169360970.9940792
1992	156731715.46062428
1993	149246768.6748036
1994	155471127.4515754
1995	235180747.6664464
1996	185832369.02883554
1997	170091158.97191662
1998	191585151.31663597
1999	215921615.69140384
2000	188109686.62789088
2001	185954982.18154
2002	204937709.94972372
2003	244572563.3516167
2004	276232683.9332822
2005	269404925.67282027
2006	346265557.00880057
2007	491904332.9197231
2008	502033585.6487644
2009	490138684.8284029
2010	503368812.0816992
2011	497173863.6745403
2012	575021163.949973
2013	761059214.9640096
2014	884934710.9648671
2015	570177486.5928239
2016	761421819.3123704
2017	688146104.0169034
2018	762154053.9132997
2019	802803953.771704
2020	787259830.8242424
2021	928528846.9701606
2022	939928688.484475