Year	Number
2004-01-01	379845
2005-01-01	230917
2006-01-01	169389
2007-01-01	119727
2008-01-01	114522
2009-01-01	133519
2010-01-01	195541
2011-01-01	247881
2012-01-01	311236
2013-01-01	360555