Year	constant 2015 US$
1960	770199940.1158459
1961	737387523.918785
1962	715910189.8337786
1963	632983851.9983469
1964	676535290.4558483
1965	701939995.9237808
1966	699560492.9272379
1967	703338125.7483903
1968	733788101.4477723
1969	814389655.1799105
1970	887232604.3857876
1971	871705149.3818216
1972	915292914.1216841
1973	939173912.0601996
1974	1067542625.8446269
1975	957680806.4191277
1976	1111725245.733857
1977	979177302.8255407
1978	1290255783.4841895
1979	1529904772.1964853
1980	1999307215.8750088
1981	2547091731.94047
1982	2144719885.9877956
1983	2564680978.583268
1984	3700169350.54721
1985	4029940737.482519
1986	3471744052.5304193
1987	3053989112.5898724
1988	3194465177.9859414
1989	3934694306.491619
1990	3548050088.758419
1991	3402579940.7189655
1992	3582916701.9208374
1993	2911689282.765306
1994	3228747611.7281914
1995	3726069943.731547
1996	4364969271.039435
1997	4659125405.698235
1998	4329442568.677283
1999	4164162545.154934
2000	4573974204.453146
2001	4862568854.516717
2002	4849767050.511361
2003	4276856100.488012
2004	4659222811.500466
2005	4371293018.037668
2006	4793356916.849337
2007	5478461839.593476
2008	5301485076.929463
2009	4665757110.997009
2010	5280906083.126071
2011	5549991491.38104
2012	5618031204.915894
2013	5800946633.197305
2014	6452925783.444752
2015	6760654004.883434
2016	6947032132.706427
2017	6837900927.835759
2018	6983504675.799303
2019	7767260248.785765
2020	6651798037.79533
2021	6883515474.579262
2022	7113801509.949366
2023	6791881351.415563