Year	constant 2015 US$
1968	742388314.1066132
1969	769919118.0588812
1970	771697626.7478518
1971	819056361.7759023
1972	840097887.1421883
1973	889193345.705032
1974	876254552.8220918
1975	862858144.4970031
1976	963165827.7602255
1977	1094382132.2832723
1978	1163860592.8337765
1979	1146827768.5003583
1980	1266048281.4863153
1981	1211281060.1621063
1982	1229556920.8558462
1983	1138834886.6778643
1984	1159571632.427169
1985	1156243532.4943187
1986	1390806436.952801
1987	1428255581.4816563
1988	1426267959.7483723
1989	1531665183.3234887
1990	1595648782.5724351
1991	1555719345.6202254
1992	1738441753.209538
1993	1682487180.4149072
1994	1735858503.4030836
1995	1801472810.245022
1996	1818064778.3034866
1997	1946343527.3826354
1998	2040332930.2149005
1999	2194820158.326632
2000	2177710515.272192
2001	2405815793.601704
2002	2470406681.9842353
2003	2602444438.1830416
2004	2698427092.3610067
2005	2934924659.7876463
2006	3138938903.581648
2007	3368919773.2996902
2008	3533506000.187168
2009	3530352492.5267353
2010	3879009378.799198
2011	4164416738.843697
2012	4041942462.9815288
2013	4335271872.325619
2014	4569857328.379994
2015	4883629687.58443
2016	5185052856.471877
2017	5455042765.147128
2018	5714976183.282774
2019	6012687777.195333
2020	6094240881.194838
2021	6407170128.272633
2022	6781872159.558469
2023	7187153098.082589