Year	Percent
1960-01-01	0.0631825978881771
1961-01-01	-0.1804077216316470
1962-01-01	0.1084402678481060
1963-01-01	3.1052536560834400
1964-01-01	-0.4027315710036080
1965-01-01	-0.1054852322438100
1966-01-01	0.9679690252613750
1967-01-01	4.5755621403329000
1968-01-01	-0.1583465287945400
1969-01-01	-0.4090150252940540
1970-01-01	1.8439359655638300
1971-01-01	1.6130359639580600
1972-01-01	3.2315542235487600
1973-01-01	10.5601757413101000
1974-01-01	17.3289809824411000
1975-01-01	4.4877222691590700
1976-01-01	2.6337115073057300
1977-01-01	4.7882240144596300
1978-01-01	4.8600645855425000
1979-01-01	3.6544679979641500
1980-01-01	6.6749195345051000
1981-01-01	9.7000000000001500
1982-01-01	5.8189000297783000
1983-01-01	3.7042354631937200
1984-01-01	3.8972726014976800
1985-01-01	0.3464587912598910
1986-01-01	0.7370028553919210
1987-01-01	0.2900079094384140
1988-01-01	2.5565194532074300
1989-01-01	2.8132008971480600
1990-01-01	2.6178010471204900
1991-01-01	4.3583333333330300
1992-01-01	4.7672282999282000
1993-01-01	3.5365853658538700
1994-01-01	3.7249705535928600
1995-01-01	3.4505750958489400
1996-01-01	3.4885594585891600
1997-01-01	2.6625145971194700
1998-01-01	5.2703420034876500
1999-01-01	2.7445613024060500
2000-01-01	1.5347402369769900
2001-01-01	1.4167847320608000
2002-01-01	1.8078724628159800
2003-01-01	0.9928162079260460
2004-01-01	1.5185421994884900
2005-01-01	2.9608650875386100
2006-01-01	3.6092356422439300
2007-01-01	2.0273531777956700
2008-01-01	5.4407822110077100
2009-01-01	0.5833084056233880
2010-01-01	1.7100371747215000
2011-01-01	3.1744709215130900
2012-01-01	1.6635710247920400
2013-01-01	2.1050123123361400
2014-01-01	3.1429905087910700
2015-01-01	2.1043898023834400
2016-01-01	2.0905665952574500
2017-01-01	3.8712011577424000