Year	Number
2004-01-01	13.9345
2005-01-01	39.4353
2006-01-01	34.8568
2007-01-01	37.0665
2008-01-01	43.8354
2009-01-01	46.4846
2010-01-01	45.3608
2011-01-01	44.2686
2012-01-01	43.1346
2013-01-01	35.9591
2014-01-01	39.9406
2015-01-01	39.2000
2016-01-01	30.1934