Year	Number
2004-01-01	59.9992
2005-01-01	63.8841
2006-01-01	67.9941
2007-01-01	86.5662
2008-01-01	98.6219
2009-01-01	102.1413
2010-01-01	113.3820
2011-01-01	126.3489
2012-01-01	145.5721
2013-01-01	169.7434
2014-01-01	233.9198
2015-01-01	251.1942
2016-01-01	262.7034