Year	Number
2007-01-01	89.38913183
2008-01-01	91.47453310
2009-01-01	91.29485367
2010-01-01	90.38361131
2011-01-01	90.31182697
2012-01-01	90.44851412
2013-01-01	90.07494409
2014-01-01	89.63548633