Year	current US$
1960	373.04277894761987
1961	397.59937761189474
1962	416.99743602080156
1963	425.1072554258415
1964	451.65124792158514
1965	490.3961160944114
1966	541.1830521462457
1967	597.8636467765418
1968	614.4525304148652
1969	680.1934787479998
1970	709.9327389402594
1971	755.0313523415728
1972	786.1928642026514
1973	879.0192651151838
1974	997.7236659440258
1975	1085.8958259511812
1976	1105.5652167898972
1977	1254.2645837793714
1978	1431.3689353278955
1979	1681.6885145421163
1980	2008.6416350544944
1981	2143.882912650722
1982	2202.1720681742413
1983	2304.8114758697807
1984	2505.7323676182223
1985	2699.4191955409024
1986	2920.796376898997
1987	3139.7245703643766
1988	3421.951808262263
1989	3413.5830514031913
1990	3544.5001295473908
1991	3580.770304020397
1992	3618.4211455093227
1993	3726.5887663518824
1994	3973.557387659684
1995	4156.47704606822
1996	4418.835600971688
1997	5604.358761814411
1998	6033.0623483735935
1999	6348.269916085512
2000	6622.113617682809
2001	6623.918769365528
2002	6953.249132704398
2003	7097.219262913049
2004	7415.2222138959505
2005	8056.622882865171
2006	9333.121277873259
2007	10028.944305646522
2008	10425.144304520056
2009	10106.212128559084
2010	10389.189720419814
2011	10543.013552140887
2012	11057.114646772792
2013	11085.051658435708
2014	11359.164897117238
2015	11629.120774444906
2016	11175.573718863245
2017	11576.276968512318
2018	11845.703369405974
2019	12173.610811623961
2020	10101.79046025334
2021	11732.89754631264
2022	15296.212982156001
2023	16810.93501732004