Year	current US$
1976	172317752716.13388
1977	216132222951.34863
1978	264447947295.5166
1979	311989300693.0231
1980	374473371391.37616
1981	410495482205.7599
1982	452958785407.4013
1983	446634578867.3236
1984	456263395881.0636
1985	440763436171.6238
1986	444904095927.0231
1987	453087323118.4655
1988	458312259791.4962
1989	485851034518.7341
1990	675978667830.9906
1991	477437878386.28577
1992	458841448996.7477
1993	471526450439.0213
1994	473722653301.564
1995	512058154205.2639
1996	542520706651.33545
1997	568893169863.6454
1998	594385582563.6505
1999	613895784202.4565
2000	634999743801.288
2001	648462446499.3383
2002	650107503053.3463
2003	704123571730.872
2004	807174102711.0491
2005	927793703372.1643
2006	1098785917254.8712
2007	1345261217505.762
2008	1655945201635.3252
2009	1649083144906.5444
2010	1773678707695.7847
2011	1976365790797.013
2012	2162208950306.3647
2013	2323451517417.3076
2014	2517303222898.1753
2015	2478496414259.0454
2016	2460728119561.8447
2017	2448158894935.61
2018	2586470913236.647
2019	2692202763071.8604
2020	2563853933382.283
2021	2717275416441.059
2022	3014667626779.8804
2023	3088898599014.1914