Year	current US$
1976	177030578878.83838
1977	202403615981.71457
1978	242449803133.32346
1979	306630080639.0426
1980	361429175104.88477
1981	370105069541.2364
1982	362041853332.9886
1983	352786557285.41504
1984	366240701992.34454
1985	379932695808.73346
1986	448089900741.5763
1987	531746989143.6968
1988	595686780192.5593
1989	643951942768.1335
1990	785496731778.3474
1991	814668591895.7224
1992	913274035913.4769
1993	890888072842.2073
1994	942798824819.2528
1995	1087904059357.4265
1996	1144814776759.005
1997	1157623504025.6233
1998	1186510859529.1912
1999	1272635012136.8105
2000	1357798971418.6482
2001	1366039512061.8315
2002	1438720372096.7192
2003	1632522403365.3564
2004	1952760765992.4463
2005	2132308173076.2556
2006	2360508016016.8027
2007	2761299691143.091
2008	3098487810558.712
2009	2757412043623.2305
2010	2958404894245.6216
2011	3265914527455.823
2012	3348525630296.451
2013	3519043687429.5684
2014	3759432244308.284
2015	3588696620187.5625
2016	3647455678765.867
2017	3956534851582.584
2018	4282853652226.974
2019	4447967338272.795
2020	3816966707889.441
2021	4401682784381.714
2022	5017727680883.529
2023	5490620448537.17