Year	Percent Change
1971-01-01	0.123012247039832
1972-01-01	1.037566201334700
1973-01-01	2.305498701263290
1974-01-01	8.488726092676500
1975-01-01	3.642595942113880
1976-01-01	1.963681603303960
1977-01-01	4.314883811056750
1978-01-01	6.790077764617070
1979-01-01	3.943152591196010
1980-01-01	8.304419584317210
1981-01-01	7.002565144280940
1982-01-01	10.085820000461300
1983-01-01	-0.175796168328632
1984-01-01	2.626066462172200
1985-01-01	4.219579270397470
1986-01-01	1.613383573066690
1987-01-01	7.826141561517240
1988-01-01	6.586794841789540
1989-01-01	1.004110634843570
1990-01-01	4.760679823004030
1991-01-01	2.260883201155780
1992-01-01	1.578952277204720
1993-01-01	2.141527915458440
1994-01-01	3.464309493369660
1995-01-01	3.174809382499520
1996-01-01	2.575374624695540
1997-01-01	3.165277176094440
1998-01-01	5.421502349634120
1999-01-01	1.894159186357190
2000-01-01	3.013852475110940
2001-01-01	0.261578359437734
2002-01-01	-1.930450254946840
2003-01-01	-1.184807957191070
2004-01-01	4.328263583383780
2005-01-01	1.021696406238170
2006-01-01	3.380435573359870
2007-01-01	4.423513379489250
2008-01-01	1.210004671183230
2009-01-01	0.405191327329217
2010-01-01	-0.788815364906978