Year	Number
2004-01-01	0.8990
2005-01-01	1.4529
2006-01-01	2.4037
2007-01-01	3.6024
2008-01-01	4.6402
2009-01-01	5.4976
2010-01-01	6.2085
2011-01-01	7.0348
2012-01-01	8.0985
2013-01-01	9.9030
2014-01-01	11.7398
2015-01-01	14.0009
2016-01-01	16.0479