Year	Percent
2003-01-01	6.460630000000000
2004-01-01	9.192739999999999
2005-01-01	18.400200000000000
2006-01-01	37.390800000000000
2007-01-01	58.327300000000000
2008-01-01	48.577000000000000
2009-01-01	32.241000000000000
2010-01-01	3.906650000000000
2011-01-01	9.339500000000000
2012-01-01	17.733900000000000
