Year current US$ 1976 9999.99977648258 1977 79999.9982118607 1978 69999.99843537807 1979 19999.9995529652 1980 9999.99977648258 1981 9999.99977648258 1982 9999.99977648258 1984 29999.999329447703 1985 9999.99977648258 1986 29999.999329447783 1990 29999.999329447703 1991 119999.997317791 1992 29999.999329447703 1993 169999.9980628495 1994 300000.0007450578 1995 229999.9985843901 1996 230000.0004470344 1997 160000.00201165667 1998 310000.002384186 1999 319999.9947100874 2000 169999.9999254943 2001 339999.9979883433 2002 4340000.005438922 2003 11770000.295713538 2004 7959999.890998 2005 8650000.015273694 2006 6069999.927654861 2007 7390000.075101857 2008 5540000.036358836 2009 2140000.030398369 2010 1390000.0229477882 2011 6579999.893903723 2012 3470000.073313716 2013 3800000.127404926 2014 7399999.946355822 2015 5649999.959394332 2016 4870000.110939147 2017 10749999.89569188 2018 7220000.015571718 2019 7920000.119134793 2020 9690000.070258971 2021 7640000.091865666 2022 4129999.974742532