Year	current US$
1960	11022305.457889225
1961	11630341.734099092
1962	15646737.049163805
1963	15768979.026220173
1964	18826859.635296628
1965	20028552.57215334
1966	17340863.333480097
1967	10469520.242235824
1968	10838523.687065005
1969	11389217.428024298
1970	12335648.708646892
1971	21078343.9155015
1972	22381901.80634443
1973	31082101.907116774
1974	33736638.21093823
1975	45064535.54592374
1976	56329264.16967358
1977	72039358.71181731
1978	83419766.71910936
1979	51370864.734385
1980	63196069.302588224
1981	52952971.55018709
1982	55276175.77015493
1983	34644542.81619577
1984	30745682.227445412
1985	56668368.85461222
1986	99345692.06766975
1987	87416984.5597688
1988	121038163.0651953
1989	114953124.15054129
1990	126788332.61391112
1991	143980877.83096445
1992	151855849.51307198
1993	116406627.6568275
1994	137358714.63162118
1995	173825449.66694936
1996	197967775.46340656
1997	201813050.24859178
1998	212975876.375658
1999	214620301.1302119
2000	162431485.89698252
2001	192935404.28997502
2002	231616784.06342396
2003	308124941.22020817
2004	407881676.169338
2005	523285721.311546
2006	466742172.53412867
2007	566838589.7125618
2008	668258449.3305013
2009	751287068.9242022
2010	776452813.83639
2011	969017530.6739249
2012	1137734491.7026572
2013	1439108656.215539
2014	1238245634.753412
2015	1057120490.1970665
2016	1152596233.8375752
2017	1430285784.3295546
2018	1525827306.472805
2019	1458964875.0978503
2020	1511041068.3108947
2021	1711770018.1329014
2022	1602582169.860313
2023	1669839042.9509115
