Year	Number
2006-01-01	1251966
2007-01-01	1427273
2008-01-01	1533215
2009-01-01	1590815
2010-01-01	1758941
2011-01-01	1911539
2012-01-01	2028059
2013-01-01	2426756
2014-01-01	2688349
2015-01-01	3260970
2016-01-01	3608370