Year	Number
2004-01-01	2053
2005-01-01	2616
2006-01-01	3041
2007-01-01	45924
2008-01-01	50918
2009-01-01	57089
2010-01-01	149958
2011-01-01	330061
2012-01-01	381195
2013-01-01	458574
2014-01-01	381726