Year	Number
2010-01-01	41.5480
2011-01-01	44.3897
2012-01-01	40.1941
2013-01-01	35.8435
2014-01-01	38.4377
2015-01-01	36.7756
2016-01-01	37.6966
2017-01-01	39.9481