Year	Number
2004-01-01	70.657015590
2005-01-01	78.260869570
2006-01-01	2.962837960
2007-01-01	5.995702816
2008-01-01	5.854231047
2009-01-01	6.228080672
2010-01-01	16.576335280
2011-01-01	53.287016480
2012-01-01	53.475440220
2013-01-01	44.980429860
2014-01-01	39.487604680