Year	Number
2005-01-01	1197626
2006-01-01	1409535
2007-01-01	1618123
2008-01-01	1849236
2009-01-01	2553604
2010-01-01	6572787
2011-01-01	7146962
2012-01-01	7951417
2013-01-01	9068086
2014-01-01	9940259
2015-01-01	10771416
2016-01-01	10006711
2017-01-01	12892051