Year	Number
2004-01-01	9.81266826214496
2005-01-01	15.67058023078420
2006-01-01	12.77788391792310
2007-01-01	18.86607579817020
2008-01-01	19.19400918237840
2009-01-01	24.49721192333040
2010-01-01	20.43929292873000
2011-01-01	13.47565857689200
2012-01-01	14.29007616976450
2013-01-01	13.97922981283200
2014-01-01	12.76092606968670