Year	Percent
1961-01-01	0.400000000000123
1962-01-01	0.419580419580255
1963-01-01	2.205199628598340
1964-01-01	1.726095843742860
1965-01-01	0.178611297164602
1966-01-01	2.005794517494930
1967-01-01	3.342800961328190
1968-01-01	0.655391120507371
1969-01-01	-0.273051879856969
1970-01-01	0.463352990732660
1971-01-01	1.761006289308190
1972-01-01	2.080758137618760
1973-01-01	19.636730575176500
1974-01-01	22.368421052631500
1975-01-01	2.536531568789510
1976-01-01	-1.841892981984230
1977-01-01	3.163950143815820
1978-01-01	4.872543813064270
1979-01-01	4.076465375363990
1980-01-01	8.526943194258560
1981-01-01	8.182021968168480
1982-01-01	3.916286779942020
1983-01-01	1.196410767696920
1984-01-01	2.600985221674830
1985-01-01	0.480122911465387
1986-01-01	-1.385703363914450
1987-01-01	0.523306521949789
1988-01-01	1.523185192326340
1989-01-01	2.345456271958930
1990-01-01	3.460753386528220
1991-01-01	3.425701730786450
1992-01-01	2.263071187028520
1993-01-01	2.289299643886420
1994-01-01	3.100132625995010
1995-01-01	1.720533847885240
1996-01-01	1.383180524818760
1997-01-01	2.003586185389590
1998-01-01	-0.267502292876124
1999-01-01	0.016709833737083
2000-01-01	1.361623924484540
2001-01-01	0.997197956155947
2002-01-01	-0.391676866585046
2003-01-01	0.507905300237538
2004-01-01	1.662727198630700
2005-01-01	0.425106276569107
2006-01-01	0.963047410320312
2007-01-01	2.104925808415850
2008-01-01	6.627997246268550
2009-01-01	0.596873454585425
2010-01-01	2.823277186418220
2011-01-01	5.247910208201350
2012-01-01	4.575959851968510
2013-01-01	2.358601145946090
2014-01-01	1.024982528228500
2015-01-01	-0.522752485199641
2016-01-01	-0.532286132492606
2017-01-01	0.576324696043912