Year	Number
2004-01-01	775
2005-01-01	814
2006-01-01	861
2007-01-01	1003
2008-01-01	1314
2009-01-01	1355
2010-01-01	1394
2011-01-01	1466
2012-01-01	1616
2013-01-01	1673
2014-01-01	1765
2015-01-01	1823
2016-01-01	1815
2017-01-01	1748