Year	Number
2004-01-01	794.0060
2005-01-01	778.6358
2006-01-01	638.8130
2007-01-01	732.4921
2008-01-01	746.1782
2009-01-01	926.4813
2010-01-01	944.4150
2011-01-01	943.2079
2012-01-01	1023.9793
2013-01-01	1035.7832
2014-01-01	1010.2388
2015-01-01	968.1776
2016-01-01	933.0518
2017-01-01	920.8589