Year	Number
2004-01-01	134276
2005-01-01	157813
2006-01-01	108962
2007-01-01	63199
2008-01-01	31252
2009-01-01	32347
2010-01-01	15347
2011-01-01	15140
2012-01-01	151098
2013-01-01	164246
2014-01-01	173107
2015-01-01	232956
2016-01-01	300893
2017-01-01	2201091