Year	current US$
1960	298591549.29577464
1961	263380281.6901408
1962	238028169.0140845
1963	290140845.07042253
1964	339436619.7183098
1965	369014084.5070422
1966	274647887.3239436
1967	180232558.1395349
1968	185294117.6470588
1969	231372549.01960784
1970	313725490.1960784
1971	342718446.60194176
1972	150375939.84962404
1973	272413793.1034483
1974	377639751.552795
1975	357446808.5106383
1983	152138447.9717813
1984	303424657.53424656
1985	431066176.4705882
1986	536978465.679677
1987	529510204.0816327
1988	587139042.721519
1989	693718732.6292385
1990	850622393.9170959
1991	1048518891.2765553
1992	821261302.5065812
1993	1325707943.4570148
1994	1304830068.6422234
1995	1294260886.9689944
1996	1469794004.1700552
1997	1709506045.039942
1998	1729060501.9769342
1999	1620844349.9360566
2000	1195814423.7950962
2001	1413725438.1862476
2002	1214740976.0265112
2003	1750712304.6180968
2004	2520324960.11651
2005	3116154832.7513313
2006	4691991974.708968
2007	3819573159.0284996
2008	4729793542.562543
2009	4280271778.6254053
2010	4217955248.4190373
2011	5039024414.303329
2012	7002867551.443475
2013	15562626895.803368
2014	14881925170.244167
2015	13690228102.73507
2016	14297150889.670795
2017	11818733129.94063
2018	14610146827.10604
2019	12743169476.097809
2020	12764420471.121555
2021	13548319616.928192
2022	11526922767.274311
2023	8284352842.365291