Year	Percent
1960-01-01	18.58490000000000
1961-01-01	19.34830000000000
1962-01-01	21.58180000000000
1963-01-01	23.51670000000000
1964-01-01	23.78060000000000
1965-01-01	24.45580000000000
1966-01-01	25.97900000000000
1967-01-01	27.21780000000000
1968-01-01	28.81310000000000
1969-01-01	30.36520000000000
1970-01-01	28.89550000000000
1971-01-01	29.48620000000000
1972-01-01	30.57390000000000
1973-01-01	32.65200000000000
1974-01-01	34.17540000000000
1975-01-01	36.76020000000000
1976-01-01	37.81890000000000
1977-01-01	43.15060000000000
1978-01-01	49.02790000000000
1979-01-01	53.89020000000000
1980-01-01	56.52410000000000
1981-01-01	57.45270000000000
1982-01-01	57.82400000000000
1983-01-01	56.96720000000000
1984-01-01	56.11130000000000
1985-01-01	56.43480000000000
1986-01-01	57.70100000000000
1987-01-01	60.63950000000000
1988-01-01	66.57280000000000
1989-01-01	71.45270000000000
1990-01-01	72.40310000000000
1991-01-01	73.52760000000000
1992-01-01	75.33670000000000
1993-01-01	77.85150000000000
1994-01-01	79.65660000000000
1995-01-01	83.07640000000000
1996-01-01	88.65670000000000
1997-01-01	92.73080000000000
1998-01-01	92.73080000000000
1999-01-01	92.73080000000000
2000-01-01	125.34100000000001
2001-01-01	110.76500000000000
2002-01-01	110.31500000000000
2003-01-01	110.10100000000000
2004-01-01	111.12200000000001
2005-01-01	114.47000000000000
2006-01-01	113.18299999999999
2007-01-01	112.10100000000000
2008-01-01	112.49300000000000
2009-01-01	118.54400000000000
2010-01-01	116.34800000000000
2011-01-01	115.40200000000000
2012-01-01	117.67100000000000
2013-01-01	117.15000000000000
2014-01-01	116.69800000000000
2015-01-01	114.60400000000000
2016-01-01	112.90700000000001