Year	Number
2004-01-01	73.5456
2005-01-01	84.9537
2006-01-01	90.8895
2007-01-01	123.7433
2008-01-01	200.3194
2009-01-01	194.6070
2010-01-01	182.6428
2011-01-01	88.7946
2012-01-01	91.3971
2013-01-01	124.5815
2014-01-01	109.5065
2015-01-01	91.2640
2016-01-01	98.5189