Year	Number
2009-01-01	42.3693
2010-01-01	42.6626
2011-01-01	45.0560
2012-01-01	44.3005
2013-01-01	43.9569
2014-01-01	44.8648
2015-01-01	45.2042
2016-01-01	45.9572
2017-01-01	45.5654