Year	Number
2009-01-01	1141529
2010-01-01	1070451
2011-01-01	1067369
2012-01-01	1256511
2013-01-01	1265600
2014-01-01	1342287
2015-01-01	1745044
2016-01-01	2009181
2017-01-01	2036073