Year current US$ 1970 19999.9995529652 1971 79999.9982118607 1972 9999.99977648258 1973 9999.99977648258 1975 79999.9982118607 1976 39999.9991059303 1977 19999.9995529652 1978 39999.9991059303 1979 19999.9995529652 1980 19999.9995529652 1987 100000.00149011599 1993 310000.002384186 1994 560000.002384186 1995 469999.998807907 1996 779999.971389771 1997 469999.998807907 1998 439999.997615814 1999 579999.983310699 2000 540000.021457672 2001 819999.992847443 2002 610000.014305115 2003 649999.976158142 2004 620000.004768372 2005 569999.992847443 2006 629999.995231628 2007 670000.016689301 2008 699999.988079071 2009 720000.028610229 2010 699999.988079071 2011 860000.014305115 2012 586775.660514832 2013 871871.7098236079 2014 797918.021678925 2015 785355.627536774 2016 894960.999488831 2017 1088999.98664856 2018 860981.225967407 2019 888999.998569489 2020 1021999.95517731 2021 892000.019550323 2022 873000.025749207