Year	Number
2004-01-01	601
2005-01-01	698
2006-01-01	767
2007-01-01	895
2008-01-01	926
2009-01-01	929
2010-01-01	947
2011-01-01	1071
2012-01-01	1088
2013-01-01	1092
2014-01-01	1110
2015-01-01	1128
2016-01-01	1124
2017-01-01	1100