Year	Number
2004-01-01	141.9327
2005-01-01	146.4497
2006-01-01	155.2330
2007-01-01	179.0178
2008-01-01	216.7378
2009-01-01	234.8958
2010-01-01	179.8605
2011-01-01	156.2185
2012-01-01	206.3804
2013-01-01	187.9499
2014-01-01	176.5598
2015-01-01	242.6818
2016-01-01	168.8389