Annual Percent
1971-01-01 1.7314900000000002
1972-01-01 1.3522299999999998
1973-01-01 0.9949600000000001
1974-01-01 0.8112860000000000
1975-01-01 0.6374750000000000
1976-01-01 0.4127640000000000
1977-01-01 0.3162330000000000
1978-01-01 0.9206530000000000
1979-01-01 0.9116930000000000
1980-01-01 0.3338260000000000
1981-01-01 1.0515700000000001
1982-01-01 2.6480099999999998
1983-01-01 4.5871500000000000
1984-01-01 6.0174699999999990
1985-01-01 7.0649200000000000
1986-01-01 8.0542400000000000
1987-01-01 8.5863900000000000
1988-01-01 9.9972900000000000
1989-01-01 7.8335200000000000
1990-01-01 5.3144900000000000
1991-01-01 5.2610300000000000
1992-01-01 8.0504600000000010
1993-01-01 11.2130000000000000
1994-01-01 17.0258000000000000
1995-01-01 24.6948000000000000
1996-01-01 28.9753000000000000
1997-01-01 30.2560000000000000
1998-01-01 23.5728000000000000
1999-01-01 18.1312000000000000
2000-01-01 18.7415000000000000
2001-01-01 20.6612000000000000
2002-01-01 27.3615000000000000
2003-01-01 30.5006000000000000
2004-01-01 26.2904000000000000
2005-01-01 27.5489000000000000
2006-01-01 22.0679000000000000
2007-01-01 15.9021000000000000
2008-01-01 12.4329000000000000
2009-01-01 9.3718600000000000
2010-01-01 9.3143700000000000
2011-01-01 9.3596700000000000
2012-01-01 8.2405900000000000
2013-01-01 7.4505800000000000
2014-01-01 6.9295300000000010
2015-01-01 6.6107900000000000
2016-01-01 6.2130800000000010