Year	Number
2010-01-01	1.4563
2011-01-01	7.0282
2012-01-01	10.5759
2013-01-01	10.7363
2014-01-01	28.9794
2015-01-01	38.4949
2016-01-01	54.1520
2017-01-01	70.8804