Year	Number
2004-01-01	12723.000000000
2005-01-01	16362.000000000
2006-01-01	33090.000000000
2007-01-01	39075.000000000
2008-01-01	39524.000000000
2009-01-01	41198.000000000
2010-01-01	47911.000000000
2011-01-01	57824.000000000
2012-01-01	73212.500000000
2013-01-01	410236.000000000
2014-01-01	104000.333333333