Year	current US$
1960	297.5860436826935
1961	315.7500554303905
1962	322.31957023875754
1963	283.15940786269516
1964	306.2699413069081
1965	327.94985922582663
1966	344.83073626772347
1967	370.5966702242088
1968	334.9677133405357
1969	358.2313458893923
1970	379.7175797328932
1971	395.081131356597
1972	395.2677617555719
1973	420.69097579363176
1974	588.252619224517
1975	663.6243333020383
1976	603.0630891257815
1977	590.8760169061885
1978	659.7372656318101
1979	684.8964856510545
1980	775.1459823998684
1981	731.5215447537306
1982	618.2348497189083
1983	628.662558947821
1984	563.953166998697
1985	586.9100459225509
1986	656.6634824034151
1987	464.3041261149912
1988	545.5863801173446
1989	504.4240974607182
1990	530.8175213636695
1991	468.39802231454627
1992	501.44180452405317
1993	607.7463432792497
1994	721.6033895198057
1995	826.9733705235716
1996	936.0843257297606
1997	991.9585514042295
1998	948.2404227445948
1999	916.5463807506129
2000	938.8932979832869
2001	937.2979922097497
2002	955.030210470206
2003	976.9932632944441
2004	1036.0198773103468
2005	1085.784886507814
2006	3138.0822091306654
2007	3609.9085093417593
2008	4011.3869035820044
2009	4213.816229222868
2010	4589.872497665922
2011	4960.004726390741
2012	5461.390084712615
2013	5576.250205822068
2014	5495.377075159865
2015	5668.42976474423
2016	5905.380195632047
2017	6220.978568206092
2018	6094.9098270093555
2019	6477.29672607993
2020	6863.074345930166
2021	9994.64570422569
2022	18199.4748396968
2023	20626.199149056665