Year	Percent
1960-01-01	1.243781094527320
1961-01-01	2.457002457002530
1962-01-01	3.117505995203810
1963-01-01	0.697674418604557
1964-01-01	-0.099304866931409
1965-01-01	3.578528828067380
1966-01-01	5.014395393234160
1967-01-01	1.759195795983010
1968-01-01	0.366711570051005
1969-01-01	-0.171501006562330
1970-01-01	2.188527039074380
1971-01-01	3.780206125449080
1972-01-01	5.831644743110060
1973-01-01	9.281194223321060
1974-01-01	17.809948033181800
1975-01-01	19.120184013605100
1976-01-01	11.449030493275600
1977-01-01	14.820964481893500
1978-01-01	16.931782458284200
1979-01-01	7.979352618487840
1980-01-01	13.858181456248400
1981-01-01	11.603053435114300
1982-01-01	20.666714666282700
1983-01-01	11.397782736852200
1984-01-01	10.284098213138100
1985-01-01	13.006566421882700
1986-01-01	2.534275988928860
1987-01-01	8.637673189800860
1988-01-01	12.264963048158200
1989-01-01	13.789317276388300
1990-01-01	17.781814429920000
1991-01-01	20.084495575463200
1992-01-01	27.332364447578400
1993-01-01	45.978881303621800
1994-01-01	28.814389430673200
1995-01-01	1.554328160550080
1996-01-01	8.864087415775190
1997-01-01	11.361845050578400
1998-01-01	6.722436507539230
1999-01-01	5.742001095204830
2000-01-01	9.980025153509790
2001-01-01	5.738598143414680
2002-01-01	1.961308217391590
2003-01-01	9.815690629796550
2004-01-01	11.624035544242700
2005-01-01	10.312778357468200
2006-01-01	14.453734208170800
2007-01-01	9.758880230275300
2008-01-01	26.239816644506300
2009-01-01	9.234125923946500
2010-01-01	3.961388891153890
2011-01-01	14.022493963847500
2012-01-01	9.377767481551260
2013-01-01	5.717493570377320
2014-01-01	6.878154992759460
2015-01-01	6.582174402503980
2016-01-01	6.297157524562720
2017-01-01	8.005722791346700