Year	Percent
1960-01-01	380.57400000000000
1961-01-01	394.88300000000004
1962-01-01	486.24400000000000
1963-01-01	185.51900000000000
1964-01-01	106.36700000000000
1965-01-01	117.71600000000001
1966-01-01	116.95800000000000
1967-01-01	94.04510000000000
1968-01-01	82.91300000000000
1969-01-01	86.78990000000000
1970-01-01	93.97360000000000
1971-01-01	92.82160000000000
1972-01-01	88.19300000000000
1973-01-01	91.71280000000000
1974-01-01	92.95130000000000
1975-01-01	113.94700000000000
1976-01-01	110.82000000000000
1977-01-01	100.82100000000000
1978-01-01	96.51620000000000
1979-01-01	99.99110000000000
1980-01-01	107.76100000000001
1981-01-01	104.33000000000000
1982-01-01	112.21900000000000
1983-01-01	112.60300000000000
1984-01-01	88.59000000000000
1985-01-01	85.73600000000000
1986-01-01	88.29590000000000
1987-01-01	80.45580000000000
1988-01-01	81.34280000000000
1989-01-01	78.11190000000000
1990-01-01	66.72440000000000
1991-01-01	57.70920000000000
1992-01-01	59.89730000000000
1993-01-01	67.80060000000000
1994-01-01	71.86860000000000
1995-01-01	76.69630000000000
1996-01-01	81.13700000000000
1997-01-01	82.64690000000000
1998-01-01	103.50800000000000
1999-01-01	118.23500000000000
2000-01-01	113.53200000000001
2001-01-01	114.82400000000000
2002-01-01	122.31500000000000
2003-01-01	107.08600000000000
2004-01-01	71.94030000000000
2005-01-01	56.14740000000000
2006-01-01	57.97880000000000
2007-01-01	62.25220000000000
2008-01-01	66.56990000000000
2009-01-01	63.09950000000000
2010-01-01	58.32550000000000
2011-01-01	58.57360000000000
2012-01-01	60.25000000000000
2013-01-01	63.16650000000000
2014-01-01	63.69640000000000
2015-01-01	62.28490000000000
2016-01-01	61.40650000000000