2008-08-21   1,416.150
2008-10-16   1,556.640
2008-12-08   1,207.910
2008-12-10   1,623.540
2009-01-24   1,535.280
2010-02-17   1,689.560
2010-04-01   1,731.410
2010-12-14   1,586.580
2011-11-18   1,586.650
2012-01-11   1,565.210
2012-01-13   1,533.850