Year	constant 2015 US$
1977	101762585.82084014
1978	112473545.67967135
1979	102524630.39577675
1980	122515599.74494708
1981	125288595.28152196
1982	129098818.156205
1983	132815902.2495069
1984	135563496.30025056
1985	141088319.46854097
1986	147036500.73401836
1987	155728042.46926755
1988	164106299.21259835
1989	171231415.98825562
1990	180058432.31460464
1991	187564571.37773022
1992	191336692.02366644
1993	195832755.0157924
1994	204338019.18827933
1995	212559633.43565097
1996	217800806.6788261
1997	223152053.0272698
1998	233003595.94881138
1999	240344625.35403407
2000	243443606.62544292
2001	247473975.7106632
2002	247634851.78759423
2003	262947714.16284817
2004	265017935.25809264
2005	260492237.19916356
2006	271639255.8980974
2007	286842045.1680827
2008	303052426.7093731
2009	306028634.13259774
2010	311782070.6733691
2011	312251998.1612467
2012	307658562.80676776
2013	305469801.44431096
2014	321023977.9349615
2015	317222222.2222222
2016	318327186.85588026
2017	309169951.2137253
2018	289094310.2451176
2019	313801488.7969512
2020	277701743.8498153
2021	290292413.66015685
2022	316646455.2100479
2023	332907639.72300076