Year current US$ 1977 9999.99977648258 1981 479999.989271164 1982 280000.001192093 1983 109999.999403954 1984 9999.99977648258 1986 280000.001192093 1987 29999.999329447703 1988 19999.9995529652 1989 100000.00149011599 1990 430000.00715255697 1991 280000.001192093 1992 1570000.05245209 1993 1350000.02384186 1994 209999.993443489 1995 2579999.92370605 1996 200000.00298023198 1997 180000.00715255702 1998 100000.00149011599 1999 140000.000596046 2000 430000.00715255697 2001 469999.998807907 2002 349999.99403953605 2003 469999.998807907 2004 349999.99403953605 2005 340000.00357627904 2006 19999.9995529652 2007 319999.99284744303 2008 219999.998807907 2009 90000.0035762787 2010 109999.999403954 2011 1539999.96185303 2012 3289999.96185303 2013 379999.99523162795 2014 150000.005960464 2015 170000.00178813902 2016 159999.99642372102 2017 1240000.0095367401 2018 150000.005960464 2019 129999.995231628 2020 159999.99642372102 2021 1049999.95231628 2022 949999.988079071