Year	Number
2004-01-01	468.6373
2005-01-01	505.0728
2006-01-01	546.0638
2007-01-01	605.8563
2008-01-01	619.0125
2009-01-01	676.9641
2010-01-01	694.1724
2011-01-01	719.0908
2012-01-01	799.5165
2013-01-01	855.2273
2014-01-01	902.5393
2015-01-01	947.9063
2016-01-01	982.7844
2017-01-01	982.7844