Year	Number
2004-01-01	38.0136756059027
2005-01-01	68.8720957204079
2006-01-01	81.5208042397194
2007-01-01	86.3271374043358
2008-01-01	92.4128849622312
2009-01-01	135.2458698991480
2010-01-01	341.5906483965760
2011-01-01	350.4485210041310
2012-01-01	370.1313511583650
2013-01-01	378.0140430516910
2014-01-01	523.1298559688310
2015-01-01	551.0679166605460