Year current US$ 1975 9999.99977648258 1977 9999.99977648258 1979 9999.99977648258 1980 29999.999329447703 1982 9999.99977648258 1983 9999.99977648258 1984 19999.9995529652 1985 50000.0007450581 1986 39999.9991059303 1987 50000.0007450581 1988 150000.005960464 1989 39999.9991059303 1990 129999.995231628 1991 310000.002384186 1992 189999.99761581398 1993 170000.00178813902 1994 2349999.90463257 1995 1840000.0333786 1996 2369999.8855590797 1997 2170000.07629395 1998 1799999.95231628 1999 2029999.97138977 2000 1659999.9666214 2001 7019999.98092651 2002 11369999.8855591 2003 15760000.2288818 2004 13319999.6948242 2005 7260000.228881841 2006 16569999.6948242 2007 21639999.3896484 2008 26760000.2288818 2009 18309999.4659424 2010 23329999.9237061 2011 33830001.8310547 2012 23299999.237060502 2013 24780000.6866455 2014 15399999.6185303 2015 23430000.3051758 2016 14250000 2017 21350000.3814697 2018 23290000.915527303 2019 17840000.1525879 2020 13449999.8092651 2021 20290000.915527303 2022 20290000.915527303