Year	Number
2004-01-01	457158054
2005-01-01	466792531
2006-01-01	485097771
2007-01-01	519199207
2008-01-01	581658012
2009-01-01	662302403
2010-01-01	734869141
2011-01-01	810129353
2012-01-01	903200257
2013-01-01	1045104595
2014-01-01	1226710171
2015-01-01	1439892283
2016-01-01	1646116065