Year constant 2011 international $ 1990 41798.1468943487 1991 42764.1155880878 1992 44456.2212229963 1993 45390.0331389561 1994 47652.5592541762 1995 49555.5842727655 1996 51805.6980452806 1997 54283.1112343337 1998 55358.5257246393 1999 56202.1013692351 2000 57314.5738764605 2001 58983.5171896982 2002 59619.7125727248 2003 59978.5459264393 2004 61760.591859078 2005 63509.4440746118 2006 63878.685345623 2007 64858.7264999582 2008 64254.0905712033 2009 63016.6650739639 2010 62994.3816943827 2011 62728.8760476913 2012 63522.984252039 2013 63573.0238381723 2014 65437.9205777985 2015 66583.6474487896 2016 66745.8132747761 2017 67528.9937455345 2018 68058.6161264847