Year	Number
2004-01-01	1738.6423
2005-01-01	1725.9835
2006-01-01	1738.5831
2007-01-01	2187.7646
2008-01-01	2208.7928
2009-01-01	2145.0243
2010-01-01	2232.8936
2011-01-01	2055.2540
2012-01-01	2010.1700
2013-01-01	1936.7038
2014-01-01	2460.6592
2015-01-01	2574.5223
2016-01-01	2562.4327
2017-01-01	2331.0822