Year current US$ 1968 230000.004172325 1969 59999.9986588955 1970 1399999.97615814 1971 1769999.98092651 1972 2450000.04768372 1973 800000.011920929 1974 -310000.002384186 1975 230000.004172325 1976 129999.995231628 1977 -259999.990463257 1978 79999.9982118607 1979 -200000.00298023198 1980 -250000 1981 1289999.96185303 1982 389999.98569488496 1983 2569999.9332428 1984 2309999.94277954 1985 2640000.10490417 1986 4159999.8474121103 1987 2150000.09536743 1988 3670000.07629395 1989 13619999.8855591 1990 5699999.80926514 1991 21590000.1525879 1992 4539999.96185303 1993 889999.985694885 1994 2019999.9809265102 1995 2140000.10490417 1996 879999.995231628 1997 779999.971389771 1998 134229995.727539 1999 649999.976158142 2000 589999.973773956 2001 860000.014305115 2002 90000.0035762787 2003 79999.9982118607 2004 43310001.373291 2005 51000000 2006 479999.989271164 2007 430000.00715255697 2008 5440000.05722046 2009 2190000.05722046 2010 3390000.10490417 2011 4820000.17166138 2012 1759999.9904632599 2013 3309999.94277954 2014 4530000.20980835 2015 3369999.8855590797 2016 3859999.89509583 2017 3339999.91416931 2018 4269999.98092651 2019 3170000.07629395 2020 3529999.97138977 2021 3000000 2022 2390000.10490417