Year	constant 2015 US$
1977	194002839.82545877
1978	201588164.97371364
1979	216904178.6441446
1980	235211153.85677359
1981	238849643.15552998
1982	240157913.5208213
1983	243007916.639823
1984	264552530.63524368
1985	287171952.60753673
1986	318350193.83828455
1987	339203230.569898
1988	370496000.51949286
1989	390798418.4104955
1990	409858640.1970802
1991	402216050.6894018
1992	419386548.61501
1993	447913009.5093761
1994	471660098.86724013
1995	497050234.84548694
1996	526092074.97466475
1997	561992423.3824911
1998	559256948.9823365
1999	577264387.5456731
2000	635237944.0359066
2001	668609850.7276479
2002	677754528.4325125
2003	651095766.6454984
2004	677115810.5774039
2005	743018278.3724334
2006	766426186.5244812
2007	771029360.0319878
2008	857219092.6875262
2009	828251035.4829903
2010	828615280.8584311
2011	842010736.0128114
2012	837583760.5343003
2013	885408310.5543948
2014	950623606.036342
2015	957222222.2222222
2016	994866931.1171036
2017	997065001.5288221
2018	1017041453.0661831
2019	1045836615.9547673
2020	885254137.2790239
2021	889500509.7778146
2022	983101307.7309314
2023	1016833010.7978816