2009-01-10   2.400
2009-10-09   2.000
2009-11-07   2.260
2009-12-06   1.920
2010-02-11   1.890
2010-09-30   2.230
2010-12-08   2.290
2011-08-05   2.080
2012-01-15   1.880
2013-01-03   2.520
2013-01-05   2.340
2014-04-21   2.400
2014-08-22   2.220
2015-01-02   2.390
2016-09-25   2.100
2017-02-13   1.990