Year	Number
2006-01-01	30.6600
2007-01-01	32.2804
2008-01-01	37.0359
2009-01-01	37.2642
2010-01-01	37.0738
2011-01-01	32.8487
2012-01-01	36.6558
2013-01-01	37.3786
2014-01-01	43.3646
2015-01-01	37.0894
2016-01-01	23.8870