Year	Number
2004-01-01	149100594
2005-01-01	161036358
2006-01-01	165406797
2007-01-01	165530806
2008-01-01	160989091
2009-01-01	166874838
2010-01-01	169306602
2011-01-01	177348289
2012-01-01	204391592
2013-01-01	222131182
2014-01-01	231081297
2015-01-01	237941773
2016-01-01	241835723