Year	Number
2004-01-01	19.221658050
2005-01-01	27.243123550
2006-01-01	29.541484630
2007-01-01	15.893037480
2008-01-01	17.165710170
2009-01-01	17.679216670
2010-01-01	24.914671700
2011-01-01	25.891482370
2012-01-01	26.994847580
2013-01-01	27.079125940
2014-01-01	3.274025005