Year	Number
2004-01-01	54.47890323
2005-01-01	57.61279711
2006-01-01	56.41651152
2007-01-01	62.19658249
2008-01-01	47.64700256
2009-01-01	43.20730437
2010-01-01	4.88541909
2011-01-01	32.56855676
2012-01-01	25.96044998
2013-01-01	24.91772305
2014-01-01	35.69356196