2008-03-31   -25.822
2008-04-29   -25.746
2009-11-06   -25.691
2010-02-11   -25.661
2010-04-01   -25.496
2010-05-31   -25.658
2010-12-08   -25.643
2012-01-16   -25.667
2012-04-20   -25.634
2013-01-03   -25.786
2013-03-13   -25.823
2013-06-16   -25.808
2015-01-14   -25.787
2015-11-30   -25.751
2017-02-10   -25.731