Year	Number
2004-01-01	92.8416
2005-01-01	99.8705
2006-01-01	112.5587
2007-01-01	116.4317
2008-01-01	151.1864
2009-01-01	168.7800
2010-01-01	186.4797
2011-01-01	173.7760
2012-01-01	196.1282
2013-01-01	185.5492
2014-01-01	199.2210
2015-01-01	224.5501
2016-01-01	253.0555