Year	current US$
1960	0.7832322836391205
1961	8.079241197666715
1962	6.125517366131786
1963	8.082230003824856
1964	2.9196843690527454
1965	2.9083666098545287
1966	5.697094240655296
1967	6.607842192908969
1968	12.073952131694687
1969	6.6469311431705
1970	7.276029332786732
1971	11.010092312141083
1972	12.393595726576514
1973	15.864591627876814
1974	28.438274380217006
1975	31.86098663261648
1976	18.786397332448068
1977	24.26797290838146
1978	46.89881700922754
1979	33.73029337724795
1980	34.25327564682989
1981	59.44136415210065
1982	48.0695109569195
1983	40.07223723648151
1984	33.00662587262278
1985	26.1041337323899
1986	52.5302427727291
1987	60.419926679665416
1988	54.934680713902566
1989	57.39778946463092
1990	83.38882285237874
1991	62.900250680507654
1992	42.13230468666253
1993	24.367262001029914
1994	13.335178589479497
1995	21.221302637717258
1996	17.927752764300845
1997	36.62857043491941
1998	34.8235682113751
1999	35.58340334138897
2000	17.482915189746503
2001	17.788374099731502
2002	19.798758598322376
2003	-11.966671714121578
2004	26.863160235528085
2005	28.007237530575026
2006	15.502480689375494
2007	56.323257500080025
2008	87.85319358145871
2009	125.57027244808965
2010	99.64011223439779
2011	148.26685513732468
2012	140.68200091710924
2013	115.76525524765455
2014	35.354993111832385
2015	62.09620887586641
2016	33.50354157326419
2017	11.566250672543001
2018	54.69442098007715
2019	17.551550226388542
2020	264.704809834005
2021	231.5345021195285
2022	60.35533368361781