Year	Percent
1990-01-01	4.55190999999999950
1991-01-01	4.03590000000000000
1992-01-01	3.63920000000000000
1993-01-01	3.48019000000000030
1994-01-01	3.46790000000000000
1995-01-01	2.86584000000000000
1996-01-01	1.42323000000000000
1997-01-01	0.66985600000000000
1998-01-01	0.72061800000000000
1999-01-01	0.53708400000000000
2000-01-01	0.23369499999999999
2001-01-01	0.16900600000000000
2002-01-01	0.24246300000000000
2003-01-01	1.06439000000000000
2004-01-01	2.32417000000000000
2005-01-01	3.89244000000000000
2006-01-01	6.17866000000000000
2007-01-01	8.40693000000000100
2008-01-01	10.94470000000000000
2009-01-01	13.43330000000000000
2010-01-01	23.51750000000000000
2011-01-01	34.08710000000000000