Year	Percent Change
1978-01-01	1.482107448416300
1979-01-01	18.543013797273900
1980-01-01	22.493075201851100
1981-01-01	20.327309614181500
1982-01-01	28.520245690598800
1983-01-01	22.649350677324100
1984-01-01	12.889905205345900
1985-01-01	18.447628644798700
1986-01-01	15.946712554621300
1987-01-01	5.844366702686620
1988-01-01	-8.051181989625440
1989-01-01	13.380905870651900
1990-01-01	0.494926387119954
1991-01-01	23.330868386678800
1992-01-01	13.912759962886600
1993-01-01	9.369958425337740
1994-01-01	-2.688000196744230
1995-01-01	1.870513639365320
1996-01-01	9.106881250418510
1997-01-01	8.863197050371200
1998-01-01	11.984592567416700
1999-01-01	6.373132149829370
2000-01-01	8.609940224285010
2001-01-01	0.938648951345434
2002-01-01	11.437630204718800
2003-01-01	8.614793106503290
2004-01-01	2.426293750190040
2005-01-01	3.656688431258130
2006-01-01	4.307212438482720
2007-01-01	6.284448789188750
2008-01-01	5.176043204375380
2009-01-01	4.566540068915610
2010-01-01	1.313425716856480