Year	current US$
1960	640.0006493450182
1961	696.2548779855466
1962	752.6831121003638
1963	813.7695687860919
1964	889.2536620777304
1965	959.1559222555305
1966	1027.446806179153
1967	1081.3790143118006
1968	1128.8977298750942
1969	1241.1744129234423
1970	1384.3141359702342
1971	1550.5242953423058
1972	1844.2381198259761
1973	2327.9440548880493
1974	2611.3089066646253
1975	3028.846060965017
1976	3127.1008390430898
1977	3512.4520039343106
1978	4276.983432473697
1979	5179.294114820901
1980	5815.715522141471
1981	5147.001291364658
1982	4931.783180998195
1983	4755.142246226327
1984	4542.972095627001
1985	4672.32021886956
1986	6331.274798773693
1987	7769.463993609509
1988	8594.208477294822
1989	8658.156733317332
1990	10531.547563365117
1991	10795.32070066471
1992	11517.304734490803
1993	10554.09322884772
1994	11008.087564433343
1995	12688.089922856441
1996	12924.943699986718
1997	12237.115643607762
1998	12537.127191862328
1999	12385.748488214002
2000	11665.099415604063
2001	11768.200427318689
2002	12862.859944795717
2003	15595.850038218316
2004	18124.804106257758
2005	19222.080093617067
2006	20747.002706760235
2007	24164.33414923541
2008	26486.9776012193
2009	23198.982928762962
2010	23638.55330896743
2011	26149.058471912835
2012	25096.18354417358
2013	26096.91820773551
2014	26341.07777115277
2015	22579.183697863846
2016	22398.149896358984
2017	23670.81271148636
2018	25255.06471946966
2019	24867.47201396447
2020	23994.928673935057
2021	27409.922767973694
2022	27567.41439976874
2023	29483.441450140625