Year % change from 1990 1991 -1.01774361815055 1992 0.022895674585155 1993 2.38931822013468 1994 3.89312353209741 1995 3.73532606698381 1996 7.19708068333704 1997 9.58787378321404 1998 9.98880802582294 1999 10.9523151822898 2000 13.5759062341537 2001 11.1657702086841 2002 13.7822753189794 2003 13.9365819637527 2004 18.0599920780216 2005 17.0583270936142 2006 13.9827302175236 2007 16.1806237144203 2008 8.35870085747552 2009 7.62660235966743 2010 9.40754030412803 2011 7.09833507210476 2012 3.38565583699368