Year	Number
2006-01-01	1328728
2007-01-01	2011355
2008-01-01	1187820
2009-01-01	750879
2010-01-01	700447
2011-01-01	744932
2012-01-01	746981
2013-01-01	846233
2014-01-01	751827
2015-01-01	747199
2016-01-01	738306
2017-01-01	791317