Year	Number
2006-01-01	2350230
2007-01-01	2792796
2008-01-01	3109390
2009-01-01	3486164
2010-01-01	3995962
2011-01-01	4086452
2012-01-01	4542216
2013-01-01	4786693
2014-01-01	5265054
2015-01-01	5557613
2016-01-01	6132550