Year	Number
2004-01-01	90240440
2005-01-01	95147399
2006-01-01	102644097
2007-01-01	112129742
2008-01-01	125666817
2009-01-01	133628182
2010-01-01	141261109
2011-01-01	150085194
2012-01-01	162880915
2013-01-01	172854857