Year	current US$
1970	236599899.3
1971	283822326.7
1972	279514373.8
1973	423839386
1974	586474731.49
1975	713899293.4679999
1976	683551300.3934
1977	775546409.2531999
1978	927359302.2304999
1979	1116684897.2809
1980	1423632252.0354
1981	1435132461.1300998
1982	1246417321.2803
1983	1336160839.7728002
1984	1134294482.8243
1985	955028050.5969
1986	1138884723.7382998
1987	1281708229.6025999
1988	1292323125.5109
1989	1373341370.3192
1990	1531273834.308118
1991	1182024792.5588684
1992	1111638543.1907206
1993	977299861.5639286
1994	943491721.6297985
1995	1118429581.8462472
1996	906140764.989689
1997	1138290561.9983773
1998	1182221150.3667693
1999	1535911818.5314026
2000	1679660277.1107163
2001	1467470662.1487525
2002	1447000637.9654684
2003	1594327556.06107
2004	1797249966.6325724
2005	1896043887.6026225
2006	2115442387.4276803
2007	2513039712.1460056
2008	2760142159.77103
2009	2922784447.5679502
2010	3162757335.620166
2011	3993999311.284396
2012	5297552971.353108
2013	5726217719.034845
2014	6397281394.178194
2015	5086994701.154252
2016	4369787167.509522
2017	4634460649.56623
2018	5066609241.000608
2019	4861944330.262816
2020	4983909502.620373
2021	5224661071.871435
2022	4051282541.0774965