Year	Number
2004-01-01	179103
2005-01-01	210948
2006-01-01	279036
2007-01-01	346351
2008-01-01	433676
2009-01-01	499557
2010-01-01	572843
2011-01-01	661609
2012-01-01	747657
2013-01-01	872422
2014-01-01	966992
2015-01-01	1031602
2016-01-01	1132315
2017-01-01	1108216