Year	Number
2004-01-01	1046
2005-01-01	1037
2006-01-01	1028
2007-01-01	1015
2008-01-01	1038
2009-01-01	1046
2010-01-01	1069
2011-01-01	1091
2012-01-01	1134
2013-01-01	1175
2014-01-01	1225
2015-01-01	1368