Year Measure 1990 1980.09833 1991 1811.53481 1992 1673.25996 1993 1666.03082 1994 1629.83183 1995 1674.41101 1996 1795.65999 1997 1866.66448 1998 1958.89469 1999 1912.81928 2000 1894.74356 2001 1960.54662 2002 2016.98153 2003 2163.80856 2004 2163.35796 2005 2194.35457 2006 2183.13604 2007 2272.14089 2008 2215.90129 2009 2145.36253 2010 2124.91928 2011 2140.43613 2012 2020.75238 2013 1983.86795 2014 1897.84067