Year	Number
2004-01-01	16258
2005-01-01	71147
2006-01-01	110876
2007-01-01	103117
2008-01-01	108773
2009-01-01	78892
2010-01-01	76849
2011-01-01	74498
2012-01-01	58593
2013-01-01	45942
2014-01-01	45182
2015-01-01	43092
2016-01-01	42226
2017-01-01	40779