Year	Number
2004-01-01	2.4625
2005-01-01	3.3441
2006-01-01	2.7875
2007-01-01	3.4153
2008-01-01	1.4209
2009-01-01	6.6982
2010-01-01	11.2254
2011-01-01	14.7226
2012-01-01	50.6764
2013-01-01	51.6980
2014-01-01	37.3476
2015-01-01	34.2982
2016-01-01	218.8269