Year	current US$
1970	8980000.087991359
1971	15229999.93525445
1972	12009999.856352806
1973	19350000.08158385
1974	29590000.305324793
1975	67149999.96498226
1976	41910000.53286552
1977	51079999.72999094
1978	73250000.26822089
1979	97859999.89509583
1980	118260001.27196309
1981	147490000.86635348
1982	127910000.60737129
1983	149870002.86579144
1984	182659998.5472858
1985	223190001.0406972
1986	141639999.3449449
1987	197430002.6893615
1988	217619999.18520442
1989	226639997.12467194
1990	300190001.6963482
1991	577639997.4375962
1992	830829983.592033
1993	692089993.7152865
1994	693760001.6500804
1995	471110005.9747694
1996	142560001.10507014
1997	17729995.65675861
1998	74079999.0296364
1999	118590002.14934358
2000	152859999.00102618
2001	161959998.72684485
2002	159250001.065433
2003	148690000.77247608
2004	103890000.11980541
2005	255729999.3820486
2006	161379998.56472015
2007	79070000.231266
2008	103359999.88764529
2009	114189999.7871369
2010	49720000.1552701
2011	118379999.16076663
2012	137451252.1177529
2013	167167275.5479813
2014	101880604.50786728
2015	117304434.70180035
2016	118747677.23679538
2017	106623969.21217449
2018	46086868.50219967
2019	82526370.05597356