2008-08-21   2.200
2008-10-16   1.990
2008-12-09   2.160
2008-12-10   2.420
2009-01-25   2.350
2009-11-06   2.040
2009-11-20   2.040
2010-03-31   2.050
2010-12-14   2.160
2011-11-17   2.100
2011-12-01   2.200
2012-01-12   2.080
2012-01-13   1.950
2012-04-18   1.790
2012-11-20   2.130
2013-01-29   2.130
2013-03-14   2.090
2013-11-14   2.120
2013-11-28   1.990
2014-03-17   2.800
2014-12-30   1.950
2014-12-31   1.910
2015-01-11   1.950
2015-12-01   1.950
2016-02-10   1.800
2017-02-10   1.360