Year	Number
2004-01-01	133619
2005-01-01	156258
2006-01-01	176872
2007-01-01	203663
2008-01-01	227505
2009-01-01	253900
2010-01-01	267475
2011-01-01	309306
2012-01-01	305635
2013-01-01	319033
2014-01-01	407158
2015-01-01	350063
2016-01-01	370520