Year constant 2010 US$ 1971 11945.1715324829 1972 12391.7697812541 1973 13035.3901768418 1974 13211.0849302913 1975 12946.449776206 1976 13422.8197862326 1977 13686.0767934986 1978 14018.1016358091 1979 14458.5237692582 1980 14586.1141484854 1981 14506.3403650255 1982 14521.7155002666 1983 14711.0296379914 1984 15008.2962211002 1985 15337.1936639347 1986 15664.9863937144 1987 16034.5751878485 1988 16616.5845014524 1989 17102.6790754585 1990 17513.1191384806 1991 17577.6047969339 1992 17396.8275438928 1993 17198.8815789083 1994 17298.9954696899 1995 17632.8554671731 1996 17924.4481898924 1997 18447.14657865 1998 18862.6747049182 1999 19404.7489584694 2000 20231.5053564549 2001 20634.6852611679 2002 20919.7231252171 2003 21284.1981783833 2004 21961.3768030086 2005 22521.3305859552 2006 23326.1519700421 2007 23992.4552678591 2008 24019.4130927947 2009 22989.2825451696 2010 23562.1639224855 2011 24021.8490910199 2012 23986.5827160116 2013 24055.1558007099 2014 24352.8354822063 2015 24686.7706383961 2016 25038.6222705954 2017 25670.7641943136