Year	Number
2004-01-01	1.2062
2005-01-01	1.3925
2006-01-01	1.6217
2007-01-01	1.4050
2008-01-01	0.7682
2009-01-01	0.8674
2010-01-01	0.9789
2011-01-01	1.5608
2012-01-01	1.9838
2013-01-01	12.7784
2014-01-01	9.9366
2015-01-01	14.4777
2016-01-01	12.9747