Year	Percent
1995-01-01	92.1946
1996-01-01	115.2280
1997-01-01	112.8890
1998-01-01	115.7850
1999-01-01	77.8944
2000-01-01	71.8153
2001-01-01	78.5803
2002-01-01	60.7913
2003-01-01	53.8647
2004-01-01	45.4279
2005-01-01	46.5152
2006-01-01	46.5288
2007-01-01	55.2056
2008-01-01	27.8566
2009-01-01	27.4311
2010-01-01	21.2540
2011-01-01	19.0616
2012-01-01	23.1023
2013-01-01	28.8852
2014-01-01	28.8259
2015-01-01	25.6754
2016-01-01	27.5592