Year	Percent Change
1967-01-01	2.705636846667670
1968-01-01	8.343590233845340
1969-01-01	10.571680544538200
1970-01-01	7.431283798353380
1971-01-01	0.511693338760640
1972-01-01	-1.627776649216620
1973-01-01	25.325495578524700
1974-01-01	12.956003581044000
1975-01-01	15.246838192662400
1976-01-01	13.720228627097000
1977-01-01	6.210481020876670
1978-01-01	9.645913292975720
1979-01-01	21.088713103819400
1980-01-01	-7.031665142360680
1981-01-01	12.513630952514700
1982-01-01	7.270039858213780
1983-01-01	6.660374354970880
1984-01-01	-0.133438997314448
1985-01-01	5.769091199614840
1986-01-01	5.651186985174720
1987-01-01	-0.928246635114412
1988-01-01	-0.210867772752574
1989-01-01	2.190344169285540
1990-01-01	9.514807448876230
1991-01-01	4.141040912409420
1992-01-01	0.175893248933366
1993-01-01	12.117038333629600
1994-01-01	1.813870791608390
1995-01-01	2.455087721742780
1996-01-01	-0.305053963341982
1997-01-01	7.406616279512710
1998-01-01	-1.484314197713400
1999-01-01	0.690475137582768
2000-01-01	7.281656708286720
2001-01-01	6.811831047143120
2002-01-01	2.499613766299740
2003-01-01	0.216059804105483
2004-01-01	3.275736383671070
2005-01-01	6.919788578323210
2006-01-01	5.745075035959450
2007-01-01	7.875135688739620
2008-01-01	8.904540474541510
2009-01-01	2.818848273431290
2010-01-01	4.531401867240930