Year	Number
2004-01-01	771.2140
2005-01-01	792.8107
2006-01-01	819.1635
2007-01-01	818.0853
2008-01-01	815.4764
2009-01-01	803.1395
2010-01-01	625.5260
2011-01-01	611.4801
2012-01-01	598.1518
2013-01-01	548.3855
2014-01-01	529.5082
2015-01-01	518.1497
2016-01-01	533.8100