Year	Number
2004-01-01	1607
2005-01-01	1678
2006-01-01	1761
2007-01-01	1942
2008-01-01	2074
2009-01-01	2248
2010-01-01	2581
2011-01-01	2669
2012-01-01	2721
2013-01-01	2727
2014-01-01	2739
2015-01-01	2810
2016-01-01	2742