Year	Number
2004-01-01	43195
2005-01-01	71145
2006-01-01	99286
2007-01-01	141193
2008-01-01	174249
2009-01-01	214384
2010-01-01	281266
2011-01-01	350772
2012-01-01	424220
2013-01-01	834880
2014-01-01	869311
2015-01-01	1002521
2016-01-01	1093933
2017-01-01	1131394