Year current US$ 1973 19999.9995529652 1974 9999.99977648258 1977 39999.9991059303 1978 1659999.9666214 1979 3619999.8855590797 1980 5949999.80926514 1981 1350000.02384186 1982 3230000.01907349 1983 2930000.0667572 1984 1720000.02861023 1985 2250000 1986 2259999.99046326 1987 2589999.91416931 1988 3039999.96185303 1989 2230000.01907349 1990 2569999.9332428 1991 1559999.9427795399 1992 1139999.98569489 1993 879999.995231628 1994 1100000.02384186 1995 810000.002384186 1996 310000.002384186 1997 340000.00357627904 1998 340000.00357627904 1999 360000.01430511504 2000 360000.01430511504 2001 310000.002384186 2002 569999.992847443 2003 500000 2004 330000.013113022 2005 389999.98569488496 2006 349999.99403953605 2007 230000.004172325 2008 140000.000596046 2009 119999.997317791 2010 119999.997317791 2017 9999.99977648258 2019 9999.99977648258