Year constant 2011 international $ 1990 40553.2585214927 1991 39322.1091825364 1992 39584.3298590314 1993 40557.2201557525 1994 40518.4078179105 1995 41999.2594636705 1996 42816.9632444088 1997 44514.1094159639 1998 45911.6864997413 1999 47199.8414462497 2000 51140.236844667 2001 54245.1496398132 2002 53096.9254922092 2003 54549.8011627024 2004 55452.6388804958 2005 56017.19161965 2006 58784.5932914465 2007 60117.4599095649 2008 60675.9820859495 2009 57151.9191321066 2010 56395.0078003539 2011 54984.5103947777 2012 52137.3003731125 2013 50669.3147696996