Year	Number
2004-01-01	30169
2005-01-01	31769
2006-01-01	31354
2007-01-01	31356
2008-01-01	29115
2009-01-01	28749
2010-01-01	31078
2011-01-01	52363
2012-01-01	46039
2013-01-01	46707
2014-01-01	98060