Year	Number
2009-01-01	171.1779
2010-01-01	1674.9327
2011-01-01	4899.6021
2012-01-01	13040.4692
2013-01-01	20750.2032
2014-01-01	24813.9392
2015-01-01	33369.9670
2016-01-01	45169.5628