Year	Number
2007-01-01	7.4492
2008-01-01	9.3840
2009-01-01	14.5813
2010-01-01	15.8910
2011-01-01	15.6969
2012-01-01	20.6975
2013-01-01	19.4976
2014-01-01	23.1880
2015-01-01	22.9640
2016-01-01	25.9075