Year	Number
2006-01-01	544.8725
2007-01-01	521.2473
2008-01-01	579.8422
2009-01-01	626.2498
2010-01-01	626.6487
2011-01-01	503.6258
2012-01-01	384.7918
2013-01-01	451.7713
2014-01-01	543.1380
2015-01-01	563.2098
2016-01-01	547.9223