Year	Number
2004-01-01	343
2005-01-01	349
2006-01-01	362
2007-01-01	358
2008-01-01	455
2009-01-01	594
2010-01-01	664
2011-01-01	703
2012-01-01	734
2013-01-01	831
2014-01-01	828
2015-01-01	867
2016-01-01	979
2017-01-01	996