Year	current US$
1960	11.810230995703328
1961	8.7437283073953
1962	9.688294511266006
1963	15.081892551628885
1964	8.580679900848
1965	25.01228393086362
1966	14.676458645133444
1967	12.156092457767892
1968	9.006775761669743
1969	11.19429565830939
1970	10.401085127809809
1971	12.507440323474476
1972	7.986791962002152
1973	13.610027965487312
1974	9.440011000420542
1975	12.819359868439129
1976	16.58762590597149
1977	13.26827392543307
1978	11.14435526660094
1979	10.382809405867778
1980	12.43237687511777
1981	12.136237110398525
1982	13.847111781969879
1983	15.22993295897339
1984	28.995468128855777
1985	22.361651142826997
1986	15.776872201970443
1987	16.598244176626206
1988	9.672798345560713
1989	8.33425393880773
1990	40.706655497922256
1991	44.639503718322295
1992	77.14977921243535
1993	30.9530316538847
1994	14.454880154770203
1995	17.138752187284222
1996	20.933711522403872
1997	19.423675988183774
1998	11.111970382853809
1999	8.273532979107104
2000	8.978153193253991
2001	11.375278238532006
2002	9.541844314350735
2003	11.484758938099006
2004	9.54888362952381
2005	8.60288448723833
2006	11.521199443589616
2007	-37.20406728989479
2008	10.139399185274353
2009	18.69727167394595
2010	35.76812908493144
2011	30.075849056166525
2012	13.675602052517803
2013	2.4100131041248565
2014	-49.696652536361796
2015	2.590281415754319
2016	5.615527519400169
2017	10.19271432104438
2018	9.396783483759913
2019	16.656696275420952
2020	33.718362966935985
2021	21.005376485947405
2022	29.52650709353985