Year	Number
2005-01-01	6.1738
2006-01-01	11.6791
2007-01-01	20.9671
2008-01-01	30.1625
2009-01-01	32.9897
2010-01-01	34.4568
2011-01-01	34.7343
2012-01-01	33.7827
2013-01-01	36.8755
2014-01-01	38.0254
2015-01-01	41.5940
2016-01-01	41.1975