Year	constant 2015 US$
1975	3514567369.707417
1976	3654981773.580464
1977	3583726636.718745
1978	3706327811.1328077
1979	4088801313.8148384
1980	4394780559.765619
1981	3902156836.32812
1982	4021984228.51562
1983	4292705373.82812
1984	4464679871.874995
1985	4345961992.57812
1986	4130716491.79687
1987	3440599473.828121
1988	3845571678.906246
1989	3848900217.5781217
1990	4222806061.7187467
1991	4039736434.765622
1992	3889952194.5312476
1993	4218368010.1562476
1994	4271624628.9062476
1995	4201725316.7968726
1996	3986479816.015623
1997	4283829270.7031226
1998	3852228756.249998
1999	3859995346.484373
2000	4186192136.3281226
2001	4106307208.2031226
2002	4102978669.5312476
2003	3964289558.2031226
2004	3929894658.5937476
2005	4106307208.2031226
2006	4190630187.8906226
2007	4479103539.453122
2008	4485760616.796872
2009	4807519355.078122
2010	4846352306.249997
2011	4806409842.187497
2012	4695458553.124997
2013	4775343481.249997
2014	5102649783.984372
2015	5285719410.937497
2016	5403327777.343747
2017	5523155169.531247
2018	5477665141.015622
2019	5761700441.015622
2020	5885965884.765622
2021	5969179351.562497
2022	5809409495.312497
2023	5953646171.093747