Year current US$ 1965 39999.9991059303 1967 209999.993443489 1969 519999.980926514 1970 3109999.89509583 1971 3500000 1972 5070000.17166138 1973 4300000.19073486 1974 2269999.98092651 1975 2369999.8855590797 1976 3220000.02861023 1977 4699999.80926514 1978 5139999.8664856 1979 6909999.84741211 1980 5269999.98092651 1981 4139999.8664856004 1982 4929999.82833862 1983 6949999.80926514 1984 7670000.07629395 1985 5500000 1986 8100000.38146973 1987 4849999.90463257 1988 14710000.038146999 1989 10810000.4196167 1990 7130000.11444092 1991 6719999.79019165 1992 9159999.84741211 1993 5880000.11444092 1994 4380000.11444092 1995 3029999.97138977 1996 3269999.98092651 1997 -1169999.95708466 1998 7070000.17166138 1999 5699999.80926514 2000 2380000.1144409203 2001 4760000.228881841 2002 6119999.88555908 2003 5719999.79019165 2004 9159999.84741211 2005 9109999.65667725 2006 10630000.1144409 2007 20079999.9237061 2008 14350000.3814697 2009 25280000.6866455 2010 22629999.1607666 2011 33000000 2012 33090000.152587898 2013 28889999.3896484 2014 34689998.626709 2015 38439998.626709 2016 35490001.6784668 2017 45040000.9155273 2018 35310001.373291 2019 45840000.1525879 2020 39200000.762939505 2021 37180000.3051758 2022 46740001.6784668