2008-04-28   1,348.460
2008-12-20   1,235.230
2009-01-09   1,356.440
2009-07-11   1,188.290
2009-11-07   1,154.580
2009-12-06   1,312.750
2010-02-11   1,147.010
2011-11-03   1,122.060
2012-01-15   1,227.400