Year	Percent Change
1981-01-01	8.826049573489510
1982-01-01	7.700348286188590
1983-01-01	8.541921361989910
1984-01-01	3.975887191913030
1985-01-01	1.701712982352580
1986-01-01	8.573427053893340
1987-01-01	4.770462674453180
1988-01-01	3.599829112276810
1989-01-01	6.516420214138690
1990-01-01	11.943906738376200
1991-01-01	7.199719024746700
1992-01-01	8.465069066253660
1993-01-01	7.188047550050550
1994-01-01	0.056072878162319
1995-01-01	1.267475206357170
1996-01-01	3.121814853801550
1997-01-01	1.306540953238270
1998-01-01	-0.541312332946208
1999-01-01	-1.561631358849230
2000-01-01	1.373938003377820
2001-01-01	2.384325662429720
2002-01-01	2.647702441231860
2003-01-01	2.588817944466940
2004-01-01	1.691939456230290
2005-01-01	2.647442306100470
2006-01-01	2.475253897121150
2007-01-01	4.264942752785220
2008-01-01	6.770402270970320
2009-01-01	2.437940655343850
2010-01-01	-3.984890235832450