Year	Number
2005-01-01	1.4054
2006-01-01	2.7371
2007-01-01	4.5851
2008-01-01	6.0887
2009-01-01	7.9564
2010-01-01	10.5190
2011-01-01	12.6618
2012-01-01	16.3474
2013-01-01	18.5251
2014-01-01	20.7354
2015-01-01	24.7851
2016-01-01	26.9678
2017-01-01	29.0859