Year	Number
2004-01-01	1807000
2005-01-01	1473000
2006-01-01	1805000
2007-01-01	1817000
2008-01-01	4851000
2009-01-01	4851000
2010-01-01	8505000
2011-01-01	9302000
2012-01-01	9858000
2013-01-01	11186052
2014-01-01	12560205
2015-01-01	13824248
2016-01-01	20405395