Year	Number
2004-01-01	89.8838
2005-01-01	108.6893
2006-01-01	135.4368
2007-01-01	146.3574
2008-01-01	171.0281
2009-01-01	167.1575
2010-01-01	167.7548
2011-01-01	172.6703
2012-01-01	160.5577
2013-01-01	168.2420
2014-01-01	173.6809
2015-01-01	168.2015
2016-01-01	166.2321