Year % change from 1990 1991 -9.82938527363481 1992 3.68424290378075 1993 5.25653726138227 1994 10.6136232984665 1995 16.9549842706926 1996 18.8075000053032 1997 22.9187570134892 1998 24.4955060636851 1999 33.8789978214432 2000 36.6241491006824 2001 39.2019312153038 2002 43.8163563584373 2003 42.1216640185994 2004 42.7383207505945 2005 49.8914964160937 2006 81.890189706266 2007 165.255731174151 2008 114.232530710863 2009 116.020771595183 2010 100.755388587078 2011 102.762942472948 2012 104.770496358819