Year	constant 2015 US$
1965	6843198652.561509
1966	7423809587.100341
1967	7771554742.391983
1968	7819293424.60777
1969	7936825244.326684
1970	8411838897.057924
1971	8671086160.799889
1972	9048877050.407497
1973	9688951152.569942
1974	9874531506.856756
1975	9933262938.437212
1976	11034392013.050177
1977	12423697518.113274
1978	12574207055.256786
1979	11305260061.780975
1980	10042803744.709482
1981	8952806393.71818
1982	8129664080.754717
1983	8232644192.824766
1984	8467254840.292429
1985	8643552039.498129
1986	8583809597.428858
1987	8623766257.560513
1988	8741158572.748676
1989	8907719889.990524
1990	11311734282.982502
1991	11380076707.61085
1992	12230689523.565483
1993	12944537309.23137
1994	13741261611.027246
1995	14597691414.366678
1996	14830510871.96082
1997	15027967568.567673
1998	14916495933.764803
1999	15298373059.529997
2000	15643275831.261591
2001	15851642161.149172
2002	15970985804.335438
2003	16096384914.672943
2004	16350957169.146643
2005	17012246823.423853
2006	17764554540.73106
2007	19025818436.2203
2008	18951820172.631332
2009	17711613120.626095
2010	17874689462.31796
2011	18155526143.32987
2012	18738912143.467106
2013	19391183286.26144
2014	19363874533.977024
2015	19939740000
2016	20332511712.955967
2017	20670789085.7912
2018	20947864064.53765
2019	21302013400.068123
2020	19570668911.370872
2021	21439840137.45605
2022	21980059586.03735
2023	24156640698.148388