Year	Percent
1989-01-01	12.5919000000000000
1990-01-01	10.6299000000000000
1991-01-01	9.1170300000000000
1992-01-01	7.0818699999999990
1993-01-01	4.9625699999999995
1994-01-01	2.7667000000000000
1995-01-01	1.6555300000000000
1996-01-01	0.9249530000000000
1997-01-01	0.4353890000000000
1998-01-01	10.2585000000000000
1999-01-01	13.4656000000000000
2000-01-01	13.1092000000000000
2001-01-01	15.4265000000000000
2002-01-01	21.4425000000000000
2003-01-01	20.3601000000000000
2004-01-01	21.0962000000000000
2005-01-01	19.8200000000000000
2006-01-01	21.9254000000000000
2007-01-01	23.5441000000000000
2008-01-01	19.7302000000000000
2009-01-01	24.8987000000000000
2010-01-01	25.0823000000000000
2011-01-01	22.2219000000000000
2012-01-01	25.0423000000000000
2013-01-01	24.6101000000000000
2014-01-01	25.9665000000000000
2015-01-01	27.2996000000000000
2016-01-01	27.8389000000000000