Year	Number
2004-01-01	257.7887
2005-01-01	266.9248
2006-01-01	347.9039
2007-01-01	365.3456
2008-01-01	648.5700
2009-01-01	729.4442
2010-01-01	755.6731
2011-01-01	812.1448
2012-01-01	751.6908
2013-01-01	833.2644
2014-01-01	1028.1345
2015-01-01	1166.7401
2016-01-01	1272.7901