Year	Percent
1960-01-01	103.97000000000000
1961-01-01	102.18700000000001
1962-01-01	109.02600000000001
1963-01-01	84.74300000000000
1964-01-01	76.35630000000000
1965-01-01	95.62440000000000
1966-01-01	98.09760000000000
1967-01-01	91.79290000000000
1968-01-01	94.03510000000000
1969-01-01	88.72950000000000
1970-01-01	76.57160000000000
1971-01-01	80.42340000000000
1972-01-01	81.66380000000000
1973-01-01	79.50890000000000
1974-01-01	62.74520000000000
1975-01-01	51.83240000000000
1976-01-01	65.68410000000000
1977-01-01	79.75350000000000
1978-01-01	77.81390000000000
1979-01-01	73.35590000000000
1980-01-01	66.22480000000000
1981-01-01	65.32570000000000
1982-01-01	64.96020000000000
1983-01-01	61.59980000000000
1984-01-01	63.38480000000000
1985-01-01	64.46130000000000
1986-01-01	61.22500000000000
1987-01-01	58.52450000000000
1988-01-01	57.98630000000000
1989-01-01	59.12120000000000
1990-01-01	59.94590000000000
1991-01-01	58.02520000000000
1992-01-01	58.87540000000000
1993-01-01	63.31970000000000
1994-01-01	67.84470000000000
1995-01-01	68.00700000000000
1996-01-01	65.35620000000000
1997-01-01	66.66440000000000
1998-01-01	74.73010000000000
1999-01-01	78.11110000000000
2000-01-01	76.93200000000000
2001-01-01	77.71290000000000
2002-01-01	76.41910000000000
2003-01-01	79.72920000000000
2004-01-01	80.81690000000000
2005-01-01	79.07430000000000
2006-01-01	79.51490000000000
2007-01-01	80.71590000000000
2008-01-01	86.43690000000000
2009-01-01	89.74480000000000
2010-01-01	91.38340000000000
2011-01-01	96.62390000000000
2012-01-01	103.67000000000000
2013-01-01	112.32000000000000
2014-01-01	110.63799999999999
2015-01-01	104.35900000000000
2016-01-01	99.08980000000000