Year	Number
2005-01-01	1313
2006-01-01	2098
2007-01-01	1458
2008-01-01	2206
2009-01-01	3216
2010-01-01	2861
2011-01-01	3436
2012-01-01	2104
2013-01-01	2135
2014-01-01	2067
2015-01-01	2516
2016-01-01	2416
2017-01-01	1949