Year	constant 2015 US$
1976	1252088011.88686
1977	1369817527.1702175
1978	1389669955.7927713
1979	1389669955.7927713
1980	1261783386.2741137
1981	1136666919.342761
1982	1045715097.6757854
1983	1077127603.5202048
1984	1174042316.3586082
1985	1254893813.6278782
1986	1606321198.1953697
1987	2176565220.598366
1988	2609693220.26431
1989	2648794055.8025546
1990	2948231698.7758484
1991	2900380957.5354705
1992	2981246095.427549
1993	3199784386.044772
1994	3390294094.2301393
1995	3299045621.2008495
1996	3668079979.543742
1997	4024091471.1253114
1998	4315977141.64493
1999	4520861893.164696
2000	4428714795.171278
2001	4554466248.138698
2002	4410398065.874859
2003	4186543861.731311
2004	4421697749.077103
2005	4865678931.951303
2006	5478246503.200999
2007	5624372399.614213
2008	5702699040.199397
2009	5079735279.251976
2010	5548595844.000012
2011	5894214395.163852
2012	5975523751.054293
2013	5944117722.283523
2014	6155252587.606013
2015	6681832574.087122
2016	6857492809.091291
2017	7008538276.80618
2018	6992911674.296721
2019	7104745317.876697
2020	5070798043.170366
2021	5441084143.594809
2022	5993801475.541758
2023	6101832958.533834