2008-12-10   59.280
2009-01-25   61.420
2009-11-06   59.770
2009-11-20   66.750
2010-03-31   52.690
2010-12-14   58.290
2012-01-11   42.130
2012-11-20   57.670
2013-02-17   58.540
2013-03-06   57.690
2013-03-14   62.110
2013-11-28   56.550
2014-12-31   62.890
2015-01-11   60.500
2015-12-01   60.150
2016-02-10   55.480
2017-02-13   55.210