Year	Percent
1960-01-01	80.03850000000000
1961-01-01	74.86550000000000
1962-01-01	76.64290000000000
1963-01-01	77.82040000000000
1964-01-01	78.00020000000000
1965-01-01	80.88710000000000
1966-01-01	81.16800000000000
1967-01-01	89.72370000000000
1968-01-01	92.47100000000000
1969-01-01	97.73040000000000
1970-01-01	99.09540000000000
1971-01-01	97.65890000000000
1972-01-01	95.43210000000000
1973-01-01	91.55720000000000
1974-01-01	77.85330000000000
1975-01-01	72.95730000000000
1976-01-01	78.63490000000000
1977-01-01	83.25890000000000
1978-01-01	87.65530000000000
1979-01-01	93.50240000000000
1980-01-01	77.55730000000000
1981-01-01	76.67790000000000
1982-01-01	83.31540000000000
1983-01-01	89.70420000000000
1984-01-01	92.26670000000000
1985-01-01	95.64860000000000
1986-01-01	94.01000000000000
1987-01-01	97.72420000000000
1988-01-01	99.67730000000000
1989-01-01	97.66170000000000
1990-01-01	93.66650000000000
1991-01-01	91.70299999999999
1992-01-01	92.01740000000000
1993-01-01	95.98620000000000
1994-01-01	99.49880000000000
1995-01-01	103.36700000000000
1996-01-01	109.71400000000000
1997-01-01	116.72500000000000
1998-01-01	120.36800000000000
1999-01-01	129.38000000000000
2000-01-01	118.88600000000001
2001-01-01	106.58100000000000
2002-01-01	111.83900000000000
2003-01-01	118.80400000000000
2004-01-01	121.79600000000000
2005-01-01	123.28299999999999
2006-01-01	123.30900000000000
2007-01-01	119.76100000000001
2008-01-01	119.43200000000000
2009-01-01	126.91400000000000
2010-01-01	131.88800000000000
2011-01-01	139.00799999999998
2012-01-01	149.56100000000000
2013-01-01	159.46900000000000
2014-01-01	166.57400000000000
2015-01-01	169.09200000000000
2016-01-01	171.62200000000000