Year	Number
2005-01-01	0.5841
2006-01-01	1.5657
2007-01-01	4.0361
2008-01-01	7.9910
2009-01-01	10.8776
2010-01-01	10.9336
2011-01-01	11.9295
2012-01-01	11.7779
2013-01-01	14.0046
2014-01-01	17.4962
2015-01-01	18.0133
2016-01-01	19.1025