Year	Number
2004-01-01	2366
2005-01-01	2438
2006-01-01	2600
2007-01-01	2733
2008-01-01	2893
2009-01-01	2953
2010-01-01	3048
2011-01-01	3062
2012-01-01	3156
2013-01-01	3377
2014-01-01	3451
2015-01-01	3572
2016-01-01	3728