Year constant 2010 US$ 1970 15242.1435778644 1971 15436.0559130988 1972 15927.8943432283 1973 16596.4531367633 1974 15531.9441893931 1975 15649.8770516323 1976 15859.7017606316 1977 15978.8343517039 1978 16804.769356465 1979 16988.7654995108 1980 16695.9633360018 1981 16492.8127710439 1982 16864.1793146102 1983 17530.6557313939 1984 17848.2948584359 1985 18329.8143963022 1986 19311.6309455069 1987 20121.1243884711 1988 21261.8819314578 1989 21628.0327023063 1990 21814.2603650018 1991 21660.6695346652 1992 22163.2586282781 1993 22970.4031401176 1994 24275.4292664563 1995 24757.3733246074 1996 25441.3788728514 1997 27136.8423847592 1998 28846.5153460543 1999 29420.3715335029 2000 30545.6676526402 2001 31395.6601202921 2002 32452.6004012885 2003 33607.0821196363 2004 34412.3368127192 2005 35554.7896553831 2006 35496.0237118685 2007 36067.3918734079 2008 34921.9454280767 2009 33266.9301864723 2010 33896.3924266902 2011 34234.9554769048 2012 33962.2045943793 2013 34249.5969655722 2014 35195.2701024188 2015 35952.576036914 2016 36407.5761210028 2017 37024.4164924467