Year	current US$
1960	2.6876302888837627
1961	2.4364708093021563
1962	25.29840118501315
1963	10.036588983174825
1964	7.556885458752279
1965	9.296177338466983
1966	8.520642621277972
1967	5.721425066930668
1968	12.273236711695485
1969	16.926136275708384
1970	13.190961989081389
1971	19.776952311008923
1972	15.440266678858826
1973	26.14653490180998
1974	26.22303597671483
1975	33.62255317842808
1976	39.48128789361889
1977	38.34543858177991
1978	42.89362429099902
1979	48.83447495300647
1980	55.64846510123584
1981	60.79045736253592
1982	51.745504255446576
1983	45.588696597620505
1984	42.96605173467936
1985	43.108841038009736
1986	56.095807016705
1987	47.02045062053583
1988	68.40927942688397
1989	52.452166391395544
1990	63.06779752277987
1991	57.09502335951006
1992	79.73474495235715
1993	75.8238112014829
1994	49.45605999262977
1995	54.023623012373044
1996	58.74170587659007
1997	55.321336464024604
1998	45.32236053409915
1999	42.74843368642021
2000	35.27889889386589
2001	31.11776768075857
2002	40.205153565510514
2003	59.710639329097084
2004	75.60915245668818
2005	75.52664843769647
2006	63.187717617778276
2007	57.126946973568906
2008	50.271488139759526
2009	73.67567799937363
2010	83.785454802242
2011	82.99618474016039
2012	115.6566180089127
2013	99.86282952784993
2014	102.93153683403546
2015	111.73135996176843
2016	127.8568227534896
2017	158.7562323482801
2018	131.63278319024565
2019	140.1142149580071
2020	210.52300387481068
2021	659.0562454626145
2022	385.09688221871846