Year	Number
2004-01-01	2987
2005-01-01	3082
2006-01-01	3196
2007-01-01	3235
2008-01-01	3270
2009-01-01	3257
2010-01-01	3013
2011-01-01	2970
2012-01-01	2898
2013-01-01	2772
2014-01-01	2710