Year % change from 1990 1991 4.73382544507164 1992 1.17498914459402 1993 -2.00955275727313 1994 7.06296135475466 1995 -2.18237082066869 1996 -1.41988710377768 1997 3.01780286582718 1998 1.53191489361701 1999 5.76031263569257 2000 11.2748588797221 2001 18.2344767694312 2002 14.8979591836735 2003 9.0134607034303 2004 10.0581849761181 2005 6.09813287016934 2006 3.41728180633956 2007 17.7698653929657 2008 6.16152844116371 2009 10.7529309596179 2010 6.44724272687798 2011 7.77276751055231 2012 9.06486632809467