Year	Number
2004-01-01	0.8835
2005-01-01	1.4135
2006-01-01	2.5351
2007-01-01	3.7336
2008-01-01	6.2687
2009-01-01	9.7334
2010-01-01	16.2941
2011-01-01	29.1695
2012-01-01	32.3961
2013-01-01	40.5086
2014-01-01	48.0833
2015-01-01	59.8448
2016-01-01	69.1327