Year	current US$
1960	2334.1338250663243
1961	2364.7539439936077
1962	2471.05511866341
1963	2646.236646867801
1964	2839.3156729872144
1965	2170.9981941665806
1966	2211.382322247737
1967	2208.4422356727687
1968	1902.421908734398
1969	2096.9265603943822
1970	2311.0277223973703
1971	2772.918596939596
1972	3294.6489426830362
1973	4323.196534586552
1974	4610.570426340132
1975	4171.769739674754
1976	4373.840997912308
1977	4950.588205389275
1978	5936.985260364228
1979	6668.138666224702
1980	7467.16803773805
1981	7813.8875433606745
1982	7656.475732389627
1983	7598.312038750064
1984	6713.760131041543
1985	7600.56524172937
1986	9427.553940353479
1987	12330.91683054831
1988	13759.15562959216
1989	13312.385585811266
1990	13663.021618429788
1991	12230.073454883395
1992	11793.139241621373
1993	13094.345450263889
1994	15280.312784292244
1995	17400.42018481721
1996	18794.436039393047
1997	17474.18702972395
1998	14738.44557039182
1999	15322.223834026689
2000	13641.102718382228
2001	13882.856826858602
2002	16874.187491819564
2003	21913.70817199608
2004	25420.234882944005
2005	27751.06547088586
2006	26654.593201898522
2007	32479.981738146667
2008	31252.962564067326
2009	28209.36232712287
2010	33676.77412399246
2011	38388.52809066157
2012	39974.29973349254
2013	42977.388040868034
2014	44578.22538680163
2015	38639.350194142666
2016	40070.895657743094
2017	42913.186956184996
2018	43228.697647377114
2019	42747.209929996585
2020	41785.69229058983
2021	49624.18167295535
2022	48216.50958363025
2023	48527.828920017986