Year	current US$
1965	1265599493.7602026
1966	1411199435.5202258
1967	1279599488.160205
1968	1427999428.8002286
1969	1486799405.280238
1970	1373959450.41622
1971	2214277811.1643424
1972	2547507364.363473
1973	3205966847.8480773
1974	10131638302.444815
1975	8077384909.251392
1976	8131688481.36203
1977	7336181542.820851
1978	7892297120.918514
1979	15543517292.286316
1980	16602478384.887733
1981	11940026185.052998
1982	5898002160.389843
1983	7213708457.271071
1984	7919658382.365856
1985	6387566541.314633
1986	3631617199.1947556
1987	7373028353.243882
1988	4204365854.4452367
1989	5673313272.90242
1990	827777777.7777778
1991	-7622709475.883759
1992	1215406612.133606
1993	4949007284.768212
1994	6132996296.296296
1995	6837036937.758001
1996	8881830539.496141
1997	8164523370.770961
1998	2909868878.7095246
1999	6342328728.873413
2000	13952639265.59566
2001	10491649330.576948
2002	9585277414.005278
2003	16402024079.567266
2004	25393620631.150322
2005	42125684931.50685
2006	58432123952.35995
2007	63684054972.66144
2008	86166247563.49785
2009	50888336779.192795
2010	62298910351.33301
2011	93758920116.03023
2012	106669080486.6609
2013	101832800437.2899
2014	86634257761.60132
2015	39255825598.11071
2016	31799826863.01249
2017	38962069426.62996
2018	51388113993.637146
2019	48022846147.8912