Year	Number
2006-01-01	1080
2007-01-01	1317
2008-01-01	1515
2009-01-01	1694
2010-01-01	1892
2011-01-01	2132
2012-01-01	2260
2013-01-01	2422
2014-01-01	2608
2015-01-01	2694
2016-01-01	2454