Year	Percent Change
1971-01-01	7.5798915764787700
1972-01-01	12.5429130940978000
1973-01-01	4.5502991723359000
1974-01-01	16.1026311703207000
1975-01-01	15.8451590147698000
1976-01-01	14.8444116075613000
1977-01-01	13.5105904401171000
1978-01-01	10.5097692417208000
1979-01-01	6.3560973914864800
1980-01-01	9.8808926596695000
1981-01-01	3.6101256114624800
1982-01-01	4.3740169475661900
1983-01-01	6.2592949413320200
1984-01-01	5.6616801301332500
1985-01-01	6.4472442567679300
1986-01-01	7.3348527762422200
1987-01-01	3.9915091354125900
1988-01-01	0.3043098331967420
1989-01-01	4.0310962206656600
1990-01-01	6.8467854614073200
1991-01-01	8.0337904206162500
1992-01-01	3.2039420348828300
1993-01-01	3.7819876201443700
1994-01-01	0.1513103520914000
1995-01-01	-0.1050743098269140
1996-01-01	3.0926096946973700
1997-01-01	1.7938402160467600
1998-01-01	3.4705108521199500
1999-01-01	2.1404338798448100
2000-01-01	2.1651123319915000
2001-01-01	2.1621985659098600
2002-01-01	1.1562081030621600
2003-01-01	-1.0763376912650100
2004-01-01	-0.0879930241815282
2005-01-01	2.1122873057251700
2006-01-01	2.7467986022094100
2007-01-01	0.7049882676387760
2008-01-01	2.6116009056362900
2009-01-01	5.1272471257148800
2010-01-01	1.2121933285461800