Year	constant 2015 US$
1960	2025289355.2699854
1961	2441177437.521701
1962	1766068046.2353578
1963	1382235442.9842167
1964	1346343225.3979764
1965	1413081131.369452
1966	1691835096.37442
1967	2031915492.4820738
1968	2047135743.1411452
1969	2060880925.6626003
1970	2058070807.2625327
1971	2244062369.5516267
1972	2463290256.0801764
1973	2711102293.265305
1974	2989366355.563401
1975	3373924242.9685273
1976	2952118684.372593
1977	2487888069.4109573
1978	2299241248.759548
1979	2302096934.934756
1980	3102673425.3074865
1981	4787589049.021194
1982	6621651513.68353
1983	5718850486.516275
1984	5453642074.111354
1985	5376622605.486048
1986	4106745269.6823378
1987	3383604020.193299
1988	3158013347.2803965
1989	2958614335.959794
1990	3046460814.4544706
1991	3795484127.276068
1992	3418445499.5243387
1993	4022910165.041413
1994	5463699513.972552
1995	4467292641.961267
1996	4294598209.0606995
1997	3994085108.076942
1998	3604175001.9601645
1999	4244527428.564189
2000	4592964570.451298
2001	5035854370.698196
2002	5323364106.401981
2003	5661246702.136005
2004	5831652039.464157
2005	6432663667.201965
2006	6936480748.16227
2007	9659240380.849617
2008	9302094716.723623
2009	9455579357.052032
2010	12384484436.365091
2011	10436255592.384018
2012	12449007157.613998
2013	13107009665.162235
2014	14684653035.496746
2015	16862404161.85643
2016	14821857475.827694
2017	10501452073.596
2018	9249232154.802244
2019	9291385777.608006
2020	7673816329.846604
2021	8536791192.138654
2022	9015872195.426147
2023	9539239458.199238