Year	Percent
1993-01-01	12.2449000000000000
1994-01-01	10.8638000000000000
1995-01-01	9.8878500000000000
1996-01-01	9.9067300000000000
1997-01-01	9.0604500000000000
1998-01-01	8.5089399999999990
1999-01-01	7.9756700000000000
2000-01-01	7.7634399999999990
2001-01-01	7.0736700000000000
2002-01-01	6.6213399999999990
2003-01-01	0.1839780000000000
2004-01-01	1.3255100000000000
2005-01-01	1.1240900000000000
2006-01-01	0.9343969999999999
2007-01-01	0.8195620000000001
2008-01-01	0.6671420000000000
2009-01-01	0.5949570000000000
2010-01-01	3.2849800000000005
2011-01-01	3.0456100000000000
2012-01-01	2.7996000000000000
2013-01-01	6.2817500000000000
2014-01-01	8.7411600000000000
2015-01-01	11.7479000000000000
2016-01-01	13.7716000000000000