Year	Number
2005-01-01	7307014
2006-01-01	8856514
2007-01-01	9958532
2008-01-01	10514183
2009-01-01	10725227
2010-01-01	11530947
2011-01-01	12656230
2012-01-01	13914457
2013-01-01	15106312
2014-01-01	15972494
2015-01-01	16581356
2016-01-01	17086568