Year	constant 2015 US$
1960	6778395278.095013
1961	8736362363.098568
1962	9949449918.37149
1963	11162537474.337408
1964	11886134780.473484
1965	9779191268.507507
1966	9802574139.156921
1967	9241394801.2641
1968	9307822265.9794
1969	8170051875.603725
1970	7788492339.433023
1971	7089143388.039001
1972	6101764645.265434
1973	6335058408.36325
1974	8403344769.139908
1975	10865945908.757978
1976	11437753745.091997
1977	11418623490.983656
1978	10511488651.762325
1979	12157827355.053354
1980	16140289889.83277
1981	17814794679.92204
1982	19142813369.768047
1983	20756735108.42744
1984	18740529173.64405
1985	14258000081.616417
1986	10829278066.292599
1987	10035336433.778395
1988	11052474799.009708
1989	10178819861.650108
1990	10032679092.089497
1991	10366542861.151367
1992	10614110137.684713
1993	11939641565.87112
1994	15159710599.780506
1995	9705558569.55439
1996	13608428231.793076
1997	22090208695.235416
1998	26187122064.446827
1999	29603095382.82866
2000	36799715209.5371
2001	36750034571.90437
2002	38319927064.065
2003	46345738174.30148
2004	64279976039.20189
2005	69518976071.5784
2006	66462013315.96831
2007	67173156654.5598
2008	73218740953.53227
2009	68510775312.73035
2010	73150765941.90512
2011	3876990325.2720604
2012	3644371166.706298
2013	4555463523.46527
2014	5694330056.707991
2015	6184121212.121212
2016	7853834252.534614
2017	9942168532.0326
2018	11028710998.459959
2019	12555995483.025358
2020	11425956037.42506
2021	11368826131.11183
2022	12357914001.039219
2023	7909064438.763978