Year	Percent Change
1978-01-01	17.354774003821500
1979-01-01	16.246706470499900
1980-01-01	24.933035586956200
1981-01-01	19.668962186932200
1982-01-01	19.758817282432000
1983-01-01	19.553037729065800
1984-01-01	20.939165053094500
1985-01-01	16.284347516312800
1986-01-01	14.507785956396000
1987-01-01	7.638292603087090
1988-01-01	0.392108455493586
1989-01-01	7.626448880088000
1990-01-01	12.411268449792800
1991-01-01	16.364064964168400
1992-01-01	11.822248844654600
1993-01-01	4.273799030134020
1994-01-01	1.928993490570200
1995-01-01	-0.186296573301882
1996-01-01	-0.228371012744304
1997-01-01	1.223191445177590
1998-01-01	3.096694923574570
1999-01-01	2.527520571349580
2000-01-01	-0.567198773390245
2001-01-01	1.837873883538860
2002-01-01	2.433889405489580
2003-01-01	-0.479445686192892
2004-01-01	0.137506320489705
2005-01-01	2.617398462116460
2006-01-01	0.662226094288876
2007-01-01	-0.641172881336518
2008-01-01	1.750049245269940
2009-01-01	0.695887202435506
2010-01-01	-0.754809613395642