Year	Number
2004-01-01	3567
2005-01-01	54739
2006-01-01	122713
2007-01-01	132553
2008-01-01	155228
2009-01-01	106156
2010-01-01	109782
2011-01-01	108107
2012-01-01	94415
2013-01-01	77239
2014-01-01	47673
2015-01-01	134194
2016-01-01	166851