Year	Percent
1960-01-01	31.19650000000000
1961-01-01	32.38810000000000
1962-01-01	30.80200000000000
1963-01-01	30.62780000000000
1964-01-01	29.97440000000000
1965-01-01	29.80000000000000
1966-01-01	30.80740000000000
1967-01-01	30.23200000000000
1968-01-01	29.88060000000000
1969-01-01	28.93810000000000
1970-01-01	25.35630000000000
1971-01-01	25.54850000000000
1972-01-01	27.92560000000000
1973-01-01	29.60740000000000
1974-01-01	28.36710000000000
1975-01-01	30.81910000000000
1976-01-01	31.20020000000000
1977-01-01	31.99920000000000
1978-01-01	34.35250000000000
1979-01-01	35.00270000000000
1980-01-01	32.94170000000000
1981-01-01	35.41470000000000
1982-01-01	34.46070000000000
1983-01-01	35.78310000000000
1984-01-01	36.75540000000000
1985-01-01	35.26220000000000
1986-01-01	34.49020000000000
1987-01-01	38.31070000000000
1988-01-01	37.26850000000000
1989-01-01	39.37100000000000
1990-01-01	42.05840000000000
1991-01-01	44.79260000000000
1992-01-01	49.44630000000000
1993-01-01	52.62410000000000
1994-01-01	51.23480000000000
1995-01-01	55.31930000000000
1996-01-01	51.82640000000000
1997-01-01	57.36270000000000
1998-01-01	59.53110000000000
1999-01-01	62.80900000000000
2000-01-01	68.26460000000000
2001-01-01	69.62870000000000
2002-01-01	74.32790000000000
2003-01-01	74.34890000000000
2004-01-01	76.09300000000000
2005-01-01	80.51180000000000
2006-01-01	85.65740000000000
2007-01-01	92.56420000000000
2008-01-01	95.29690000000000
2009-01-01	97.88970000000000
2010-01-01	102.19200000000001
2011-01-01	106.80300000000000
2012-01-01	108.76200000000000
2013-01-01	107.34000000000000
2014-01-01	108.56000000000000
2015-01-01	108.00200000000001
2016-01-01	110.81100000000000