Year	Percent Change
1993-01-01	17.49365987479670
1994-01-01	12.72944297844390
1995-01-01	23.19531682490440
1996-01-01	26.86756493158650
1997-01-01	40.34980526314830
1998-01-01	29.41199145394680
1999-01-01	15.52008337030030
2000-01-01	13.96638691694490
2001-01-01	13.35014542995350
2002-01-01	12.65013675570120
2003-01-01	11.84280742191930
2004-01-01	10.27090665645680
2005-01-01	8.83031312540929
2006-01-01	7.92784308849110
2007-01-01	8.97152295159679
2008-01-01	7.23105905734649
2009-01-01	3.77704869772480
2010-01-01	4.22066765164258