Year	current US$
1970	126692012841.29468
1971	142951050961.52896
1972	161357356176.48312
1973	213047777257.9879
1974	278786807151.2639
1975	296968499401.3257
1976	325777344802.6675
1977	352798814069.2239
1978	398553665310.9989
1979	462801725651.39777
1980	543204998939.6242
1981	626185019849.0941
1982	570852389529.6251
1983	485949641970.78406
1984	494972802106.9284
1985	485699066598.18884
1986	498100898024.6047
1987	531498665063.5793
1988	599845364002.6239
1989	677364759270.514
1990	788289485802.7751
1991	867197258315.0139
1992	948318723149.0006
1993	1125284199757.4202
1994	1331995234258.6802
1995	1423794990458.2188
1996	1564400008935.021
1997	1704255947457.2542
1998	1702119288648.4902
1999	1484208719705.4102
2000	1629730317660.181
2001	1589939469469.1025
2002	1417794301917.7273
2003	1435492893660.6338
2004	1623725572030.6611
2005	1946965796096.689
2006	2293622116413.902
2007	2727993920982.822
2008	3125297952442.2134
2009	2906519198427.416
2010	3588708266154.6997
2011	4123597551534.6436
2012	4063034296044.0195
2013	4210987719100.973
2014	4241148467564.541
2015	3662434647176.194
2016	3542007510646.5483
2017	3970515800797.413
2018	3808280137296.4546
2019	3770790600385.4155
2020	3171836224653.7373
2021	3545454499896.415