Year	Number
2004-01-01	123
2005-01-01	133
2006-01-01	148
2007-01-01	178
2008-01-01	250
2009-01-01	286
2010-01-01	476
2011-01-01	490
2012-01-01	530
2013-01-01	536
2014-01-01	575
2015-01-01	630
2016-01-01	666