Year	Percent
1989-01-01	0.5516430000000000
1990-01-01	0.8934340000000001
1991-01-01	1.2511900000000000
1992-01-01	0.9500890000000000
1993-01-01	0.7802390000000000
1994-01-01	1.0361000000000000
1995-01-01	1.7647000000000000
1996-01-01	2.1087000000000000
1997-01-01	2.0493900000000003
1998-01-01	2.5701700000000000
1999-01-01	1.9840900000000001
2000-01-01	1.6366900000000000
2001-01-01	1.7298900000000001
2002-01-01	1.9211500000000000
2003-01-01	2.5492700000000000
2004-01-01	3.6025900000000000
2005-01-01	3.6191699999999996
2006-01-01	2.8660700000000000
2007-01-01	1.7628700000000002
2008-01-01	1.2721200000000001
2009-01-01	1.5203900000000000
2010-01-01	0.9347420000000000
2011-01-01	0.6209520000000001
2012-01-01	0.6094810000000000