Year	Number
2006-01-01	1.778093883
2007-01-01	2.240398293
2008-01-01	2.204836415
2009-01-01	1.920341394
2010-01-01	1.564722617
2011-01-01	1.315789474
2012-01-01	1.280227596
2013-01-01	1.280227596
2014-01-01	1.280227596
