Year	Number
2008-01-01	1672
2009-01-01	1880
2010-01-01	2128
2011-01-01	2367
2012-01-01	2493
2013-01-01	3120
2014-01-01	3407
2015-01-01	3581
2016-01-01	3824
2017-01-01	3961