Year	Number
2004-01-01	1305
2005-01-01	1899
2006-01-01	2182
2007-01-01	2446
2008-01-01	2734
2009-01-01	2635
2010-01-01	2487
2011-01-01	2383
2012-01-01	2243
2013-01-01	1989
2014-01-01	1787
2015-01-01	1730
2016-01-01	1719
2017-01-01	1627