Year current US$ 1973 19999.9995529652 1974 9999.99977648258 1977 59999.9986588955 1978 1659999.9666214 1979 3619999.8855590797 1980 5959999.809041623 1981 1350000.02384186 1982 3230000.01907349 1983 2930000.0667572 1984 2020000.0200420625 1985 2279999.9993294477 1986 2329999.988898638 1987 2689999.911934136 1988 3459999.9506026534 1989 2380000.017583374 1990 2679999.9326467537 1991 1679999.941959976 1992 1259999.983012681 1993 899999.9947845931 1994 1100000.02384186 1995 810000.002384186 1996 310000.002384186 1997 2009999.9699741616 1998 520000.003278256 1999 500000.0149011614 2000 2929999.95872378 2001 330000.00193715113 2002 679999.992251397 2003 599999.999627471 2004 430000.01087784773 2005 389999.98569488496 2006 349999.99403953605 2007 230000.004172325 2008 140000.000596046 2009 249999.992549419 2010 29349999.53955409 2011 39199999.690055825 2012 389999.98569488496 2013 329999.9982118601 2014 92479999.69124793 2015 5599999.90463257 2016 3680000.0667572 2017 4450000.168755653 2018 3460000.03814697 2019 47710000.76271599 2020 2930000.0667572 2021 4389999.777078623 2022 4760000.094771383