Year Measure 1990 2667.53096 1991 2708.06932 1992 2966.82337 1993 2613.8744 1994 2708.78129 1995 2797.42564 1996 2920.91807 1997 2995.10052 1998 3071.48356 1999 2856.16338 2000 2895.58924 2001 2800.99978 2002 2755.58731 2003 3108.9506 2004 3143.34092 2005 3374.31174 2006 3450.07258 2007 3621.47282 2008 3676.15405 2009 3421.30586 2010 3574.08635 2011 3882.96951 2012 3681.22829 2013 3551.02448 2014 3496.99999