Year constant 2010 US$ 1970 18117.8773725579 1971 18795.6095286 1972 19519.5391522066 1973 20565.5468977313 1974 20529.2849037609 1975 20345.8041999472 1976 21045.2304283541 1977 21520.7697652247 1978 22606.7253375143 1979 23213.4302206093 1980 23064.2149311639 1981 22833.4976701054 1982 23165.0105676747 1983 23287.5298518134 1984 23396.7799575145 1985 23829.9433056996 1986 24980.5830307826 1987 25517.609143245 1988 26680.9589599889 1989 27364.8629665766 1990 28131.9659209478 1991 28028.9933507121 1992 28553.8656545419 1993 28268.5594272447 1994 28800.9942574611 1995 29306.9574819062 1996 29644.2473132807 1997 30418.01930818 1998 31550.5814561653 1999 32715.599420605 2000 33300.4588144641 2001 33774.4644051223 2002 33715.0560897707 2003 33603.8345842336 2004 34382.0135726916 2005 34427.2085388329 2006 34861.8873375818 2007 35622.8559444523 2008 35241.3911200408 2009 33772.9476139843 2010 34311.5177305945 2011 34832.695169726 2012 34402.4077155353 2013 34544.6693453132 2014 34819.4358866067 2015 35524.6125385302 2016 35773.0477242134 2017 36623.8742292502