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Feb 2016 Jan 2016 Dec 2015 Nov 2015 Oct 2015 Sep 2015 Aug 2015 Jul 2015 Jun 2015 May 2015 Apr 2015 Mar 2015 Feb 2015 Jan 2015
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SDI 30.24 USD 30.24 USD 30.24 USD 30.24 USD 30.24 USD 30.24 USD 26.88 USD 26.88 USD 24.64 USD 24.64 USD 22.40 USD 22.40 USD 20.16 USD 20.16 USD 17.92 USD 17.92 USD 14.56 USD 14.56 USD 12.32 USD 12.32 USD 10.08 USD 10.08 USD 7.84 USD 7.84 USD 5.60 USD 5.60 USD 3.36 USD 3.36 USD