Year	constant 2015 US$
1970	4467644220.462738
1971	4852704537.416081
1972	5086206986.028625
1973	5257484968.839663
1974	5305388366.657447
1975	5821823239.37858
1976	6142589028.387523
1977	6661154488.3889265
1978	7077958413.40803
1979	7146958483.863554
1980	6921581918.828949
1981	8226265471.050434
1982	8793613132.648928
1983	9206217546.381727
1984	10029285233.559313
1985	11342780206.78653
1986	10000513149.59462
1987	8990696124.13354
1988	9875844361.90227
1989	10875272382.355574
1990	10480280153.888998
1991	8327042701.316942
1992	4890755815.815877
1993	3479505303.61219
1994	2517685870.8516235
1995	2638614451.5615196
1996	3616960366.2360454
1997	3892157180.484133
1998	3465920205.6942167
1999	3481721961.620468
2000	3876765859.776746
2001	3907445892.386805
2002	3486236749.0279694
2003	3150295522.38806
2004	3574890756.302521
2005	4754276357.707262
2006	5989275931.26803
2007	6131902169.8231535
2008	7476898382.039383
2009	6053919478.239057
2010	6010823780.258371
2011	6523867803.837953
2012	6990737865.295372
2013	7271885990.216983
2014	6917885613.947072
2015	8181000000
2016	8795626740.248339
2017	8809991972.908567
2018	9234792424.43246
2019	9140392324.093817
2020	8598617835.193779
2021	8560652577.44889
2022	8067104226.765333