Year	Percent
1960-01-01	5.6567300000000005
1961-01-01	6.7494300000000000
1962-01-01	8.4993800000000000
1963-01-01	7.3834200000000000
1964-01-01	5.6367300000000000
1965-01-01	6.7881800000000005
1966-01-01	8.8460700000000000
1967-01-01	12.0183000000000000
1968-01-01	16.7638000000000000
1969-01-01	22.0875000000000000
1970-01-01	25.4557000000000000
1971-01-01	26.2307000000000000
1972-01-01	27.3751000000000000
1973-01-01	26.6181000000000000
1974-01-01	24.9007000000000000
1975-01-01	23.0960000000000000
1976-01-01	21.8385000000000000
1977-01-01	23.3359000000000000
1978-01-01	23.6112000000000000
1979-01-01	23.5276000000000000
1980-01-01	24.8960000000000000
1981-01-01	25.3480000000000030
1982-01-01	27.6149000000000000
1983-01-01	28.1255000000000000
1984-01-01	27.2084000000000000
1985-01-01	27.2479000000000000
1986-01-01	27.8783000000000000
1987-01-01	27.9824000000000000
1988-01-01	28.1900000000000000
1989-01-01	29.9527000000000000
1990-01-01	29.8377000000000000
1991-01-01	29.6817000000000000
1992-01-01	30.6442000000000000
1993-01-01	30.9217000000000000
1994-01-01	30.8288000000000000
1995-01-01	30.6729000000000000
1996-01-01	31.8711000000000000
1997-01-01	33.2731000000000000
1998-01-01	42.8641000000000000
1999-01-01	49.2531000000000000
2000-01-01	56.6346000000000000
2001-01-01	63.2413000000000000
2002-01-01	63.6069000000000000
2003-01-01	65.0342000000000000
2004-01-01	62.1209000000000000
2005-01-01	59.7053000000000000
2006-01-01	58.4669000000000000
2007-01-01	54.9030000000000000
2008-01-01	56.4144000000000000
2009-01-01	61.0778000000000000
2010-01-01	62.8389000000000000
2011-01-01	67.2627000000000000
2012-01-01	68.7760000000000100
2013-01-01	95.9803000000000000
2014-01-01	124.0240000000000000
2015-01-01	127.4440000000000000
2016-01-01	130.2879999999999800