Year current US$ 1974 19999.9995529652 1975 19999.9995529652 1976 39999.9991059303 1977 29999.999329447703 1980 39999.9991059303 1982 310000.002384186 1984 59999.9986588955 1985 59999.9986588955 1986 59999.9986588955 1987 19999.9995529652 1988 150000.005960464 1989 100000.00149011599 1990 39999.9991059303 1991 50000.0007450581 1992 109999.999403954 1993 59999.9986588955 1994 59999.9986588955 1995 29999.999329447703 1996 29999.999329447703 1997 790000.021457672 1998 540000.021457672 1999 1450000.04768372 2000 1980000.01907349 2001 340000.00357627904 2002 360000.01430511504 2003 689999.997615814 2004 1730000.01907349 2005 2640000.10490417 2006 1000000 2007 689999.997615814 2008 39999.9991059303 2009 100000.00149011599 2010 569999.992847443 2011 189999.99761581398 2012 59999.9986588955 2013 419999.986886978 2014 490000.009536743 2015 239999.994635582 2016 360000.01430511504 2017 259999.990463257 2018 500000 2019 529999.971389771 2020 509999.99046325695 2021 899999.976158142 2022 709999.978542328