Year	Number
2007-01-01	24.1744
2008-01-01	35.9313
2009-01-01	34.6103
2010-01-01	33.8177
2011-01-01	31.8032
2012-01-01	27.1136
2013-01-01	27.3118
2014-01-01	25.2972
2015-01-01	23.3157
2016-01-01	20.8058