Year	Percent Change
1970-01-01	7.649344908736860
1971-01-01	9.394330120325030
1972-01-01	8.363050126448220
1973-01-01	9.868519019400650
1974-01-01	11.186950334763100
1975-01-01	10.158846489883200
1976-01-01	5.600338940659410
1977-01-01	5.845753759941630
1978-01-01	6.129502941401060
1979-01-01	5.413133111205270
1980-01-01	1.218159470637400
1981-01-01	3.598654295456180
1982-01-01	5.829929387624360
1983-01-01	-0.641082103338941
1984-01-01	-2.320976138866660
1985-01-01	1.581215201118070
1986-01-01	3.645050958391310
1987-01-01	0.516347522081221
1988-01-01	-0.195839120149352
1989-01-01	-0.661305295916578
1990-01-01	2.223198459890780
1991-01-01	3.286048253389400
1992-01-01	5.292325749299600
1993-01-01	2.324646023917820
1994-01-01	-0.616154918819664
1995-01-01	0.645456576583195
1996-01-01	1.417891398552750
1997-01-01	1.181822390507730
1998-01-01	2.170047877234270
1999-01-01	1.552268580208580
2000-01-01	1.924264616797000
2001-01-01	4.365756872895000
2002-01-01	3.660346281865520
2003-01-01	1.543434984225270
2004-01-01	-0.249296688742185
2005-01-01	-1.104833637252970
2006-01-01	0.707480965170149
2007-01-01	1.584112705205840
2008-01-01	2.445705617430870
2009-01-01	2.360772180379470
2010-01-01	-0.623568848508510