Year	Number
2004-01-01	229228
2005-01-01	262301
2006-01-01	505049
2007-01-01	547451
2008-01-01	2694918
2009-01-01	444001
2010-01-01	169303
2011-01-01	15525
2012-01-01	19279
2013-01-01	19069
2014-01-01	21794