Year current US$ 1967 9999.99977648258 1968 9999.99977648258 1970 19999.9995529652 1971 1049999.95231628 1972 9999.99977648258 1973 2029999.97138977 1974 1440000.0572204601 1975 230000.004172325 1976 3059999.94277954 1977 1789999.96185303 1978 860000.014305115 1979 219999.998807907 1980 17190000.5340576 1981 1840000.0333786 1982 7469999.79019165 1983 2740000.00953674 1984 3240000.00953674 1985 1340000.0333786 1986 769999.980926514 1987 959999.978542328 1988 1379999.99523163 1989 1649999.97615814 1990 4940000.05722046 1991 3440000.05722046 1992 5329999.92370605 1993 7500000 1994 2859999.89509583 1995 1519999.98092651 1996 7059999.94277954 1997 2099999.90463257 1998 5539999.96185303 1999 6130000.11444092 2000 5840000.15258789 2001 6900000.09536743 2002 4480000.01907349 2003 4429999.82833862 2004 12760000.2288818 2005 5840000.15258789 2006 6280000.20980835 2007 4010000.2288818406 2008 4019999.98092651 2009 5300000.19073486 2010 4139999.8664856004 2011 4900000.09536743 2012 5139999.8664856 2013 6070000.17166138 2014 8060000.419616699 2015 4809999.94277954 2016 4599999.90463257 2017 3140000.10490417 2018 4909999.84741211 2019 4590000.15258789 2020 4369999.88555908 2021 5489999.771118159 2022 3180000.0667572