Year current US$ 1972 89999.99798834331 1973 129999.99895691872 1974 200000.00298023218 1975 1189999.9845773028 1976 640000.0024586915 1977 459999.99344348954 1978 850000.0070780511 1979 850000.0089406966 1980 1270000.020042064 1981 1090000.009164214 1982 190000.00320374966 1983 119999.99731779099 1984 139999.9968707561 1985 119999.99918043616 1986 229999.99672174454 1987 479999.9911338089 1988 649999.9910593026 1989 760000.0016391267 1990 1029999.9825656409 1991 790000.0140070909 1992 580000.0093877307 1993 1359999.9845027926 1994 3499999.9739229633 1995 3189999.9808520083 1996 3129999.9635666595 1997 4450000.008568164 1998 3459999.9897181983 1999 4110000.0496953717 2000 4170000.0278651705 2001 4590000.04455447 2002 5839999.99426305 2003 10520000.070333483 2004 11719999.838620417 2005 14500000.128522513 2006 8909999.962896101 2007 8650000.05438924 2008 11799999.980255958 2009 7730000.060051678 2010 8070000.130683187 2011 9200000.075623386 2012 3479999.985545873 2013 3689999.924972649 2014 4469999.935477969 2015 5009999.977424741 2016 3819999.9723583455 2017 10939999.923109999 2018 8250000.024214387 2019 9729999.832808973