2008-03-31   -25.457
2008-04-29   -25.551
2009-11-06   -25.554
2010-02-11   -25.596
2010-04-01   -25.552
2010-05-30   -25.575
2010-12-08   -25.596
2012-01-16   -25.499
2012-04-20   -25.537
2013-01-03   -25.602
2013-03-13   -25.451
2013-06-16   -25.406
2014-04-12   -25.453
2014-04-24   -25.499
2015-01-14   -25.456
2015-11-30   -25.545
2017-02-10   -25.552