Year	current US$
1961	6.0645985840382055
1962	7.483247552039571
1963	2.0248047663807993
1964	2.3185972950084657
1965	5.649759490570901
1966	5.777918890361899
1967	5.450747930213584
1968	8.862112187911219
1969	7.233125455620771
1970	5.647921484209219
1971	9.516776173884747
1972	8.849793563793172
1973	7.931857126424341
1974	10.74495630790453
1975	10.109360818813295
1976	9.697036739931097
1977	12.049089933064192
1978	54.66994372166586
1979	54.29208343184822
1980	51.87900467399297
1981	63.02797238261248
1982	73.92687627254698
1983	76.63533681763467
1984	73.03580486258394
1985	72.38997664469707
1986	75.3409821736785
1987	68.79843326686157
1988	78.48208134371806
1989	109.08983812523948
1990	113.53535974559937
1991	68.00125981525349
1992	50.48932510120662
1993	42.69920807202096
1994	48.77661868934925
1995	45.632932118565925
1996	24.63979931549133
1997	29.85572295207542
1998	8.965418085953015
1999	-6.636441088867956
2000	5.409223286243193
2001	22.434634475777603
2002	10.814011397977405
2003	3.9795898686565248
2004	32.56352044876473
2005	16.343757599847283
2006	15.132024405664472
2007	11.720625542083413
2008	33.12343877385878
2009	55.935917882522446
2010	51.611329071594525
2011	14.940813467523997
2012	10.167340612055945
2013	25.815602641597486
2014	34.47244228721535
2015	21.13836546964574
2016	9.58006503792589
2017	21.916580698973533
2018	35.67421187893102
2019	44.484753449885616
2020	23.709101268946362
2021	20.71652063997521
2022	33.64956261214843