Year	Number
2008-01-01	4.7326
2009-01-01	171.5223
2010-01-01	422.5258
2011-01-01	813.7033
2012-01-01	1000.7606
2013-01-01	1149.3510
2014-01-01	1447.7171
2015-01-01	1823.3538