Year	Number
2006-01-01	7.554814109
2007-01-01	22.100075820
2008-01-01	12.329749100
2009-01-01	21.261792450
2010-01-01	24.688484180
2011-01-01	28.315256690
2012-01-01	27.984857310
2013-01-01	29.856957090
2014-01-01	23.444494180