Year constant 2010 US$ 1971 7399.62823658408 1972 8068.03095073959 1973 8462.97755900518 1974 8623.40664452267 1975 9162.0916620583 1976 9328.72218276423 1977 9736.83371083798 1978 10403.4659885885 1979 11049.1625176629 1980 11243.5048287273 1981 11410.0448384504 1982 11713.9623184566 1983 12999.0184913831 1984 13943.8872700908 1985 13834.1116543798 1986 13907.9345589558 1987 14519.832258304 1988 16127.6741271051 1989 17333.7314366224 1990 18592.91205244 1991 19506.3751115142 1992 20129.5110655054 1993 21307.2427756828 1994 23748.6928402983 1995 25595.4454715547 1996 25988.5785706519 1997 27871.9480489229 1998 25535.3521149419 1999 26239.0355212765 2000 29116.9364174723 2001 27237.819420813 2002 27699.418488597 2003 28751.0722556731 2004 30676.5464193872 2005 32972.0021824901 2006 36245.2854468348 2007 38435.0809823343 2008 34013.7423034539 2009 32762.8582804891 2010 40099.6661185365 2011 40435.5918345333 2012 39622.574627679 2013 40388.3470844047 2014 41482.6613792498 2015 42551.9286907924 2016 42295.6170984673 2017 44582.2663961813