Year	Percent
1979-12-31	-0.94
1980-12-31	-1.4952
1981-12-31	1.561
1982-12-31	0.4717
1983-12-31	-0.141
1984-12-31	0.3416
1985-12-31	-1.1917
1986-12-31	-1.4576
1987-12-31	-0.9788
1988-12-31	-1.0047
1989-12-31	-1.7875
1990-12-31	-2.7733
1991-12-31	-2.3899
1992-12-31	-2.5637
1993-12-31	-0.9974
1994-12-31	-0.2914
1995-12-31	-0.2499
1996-12-31	-0.2053
1997-12-31	-0.4626
1998-12-31	-0.7317
1999-12-31	-0.0172
2000-12-31	0.169
2001-12-31	-0.4303
2002-12-31	-0.8328
2003-12-31	-1.019
2004-12-31	-1.3569
2005-12-31	-0.5134
2006-12-31	0.1976
2007-12-31	-0.2935
2008-12-31	-0.9842
2009-12-31	-0.0514
2010-12-31	-0.0759
2011-12-31	-0.1602
2012-12-31	-0.0681
2013-12-31	-0.0914
2014-12-31	-0.1197
2015-12-31	-0.0735
2016-12-31	0.1451
2017-12-31	0.3586
2018-12-31	0.5564
2019-12-31	0.5077
2020-12-31	0.1291