Year constant 2010 US$ 1970 17277.5884427633 1971 17414.4343407822 1972 18577.6611678986 1973 19685.1623394984 1974 19694.9769565851 1975 19387.2460763678 1976 19754.8463638668 1977 19347.8388915801 1978 20015.6574548831 1979 21558.7217062158 1980 21971.613143124 1981 22192.430420612 1982 22756.7890066131 1983 23169.3721585123 1984 24134.3163607945 1985 24738.0646164925 1986 25719.1787083098 1987 26480.7055858226 1988 28199.2568313282 1989 28687.3435199015 1990 28020.585963498 1991 25016.4516105491 1992 23568.7571567079 1993 23104.5997643499 1994 24682.1190250626 1995 27382.4921524925 1996 28251.4070836739 1997 30569.9415343748 1998 32378.2681430794 1999 34031.7417170368 2000 35402.4739660189 2001 36393.2204932471 2002 36848.1035196775 2003 36631.6776237809 2004 38172.8156347772 2005 38387.2106034176 2006 39700.9656286163 2007 41172.1715439795 2008 40437.3619148551 2009 37069.7598919977 2010 37972.2581888908 2011 38255.5922274933 2012 37110.1208797578 2013 36720.7039846279 2014 36743.3372279679 2015 37420.2179000834 2016 38592.3464766289 2017 39685.4409138517