2008-04-28   4,030.240
2008-12-20   4,248.300
2009-01-09   4,489.630
2009-07-11   3,965.090
2009-10-09   2,944.740
2009-11-07   4,017.480
2009-12-06   4,169.060
2010-02-11   3,809.760
2011-11-03   3,444.570
2012-01-15   3,304.740