Year	Number
2004-01-01	179687
2005-01-01	201697
2006-01-01	289754
2007-01-01	318164
2008-01-01	353660
2009-01-01	528137
2010-01-01	580377
2011-01-01	534992
2012-01-01	689669
2013-01-01	1110856
2014-01-01	868191
2015-01-01	1027446
2016-01-01	964729