Year	Number
2007-01-01	261.2285
2008-01-01	281.6331
2009-01-01	245.5297
2010-01-01	224.7921
2011-01-01	217.3111
2012-01-01	212.7300
2013-01-01	218.4282
2014-01-01	221.1064
2015-01-01	222.2231
2016-01-01	224.4065
2017-01-01	231.7715