1. Sep 2017 Aug 2017 Jul 2017 Jun 2017 May 2017 Apr 2017 Mar 2017 Feb 2017 Jan 2017 Dec 2016 Nov 2016 Oct 2016 Sep 2016 Aug 2016 Jul 2016 Jun 2016 May 2016 Apr 2016 Mar 2016 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

  2. 61.56 USD 61.56 USD 52.63 USD 52.63 USD 71.41 USD 71.41 USD 56.50 USD 56.50 USD 66.19 USD 66.19 USD 53.03 USD 53.03 USD 86.40 USD 86.40 USD 58.58 USD 58.58 USD 70.90 USD 70.90 USD 78.16 USD 78.16 USD 61.41 USD 61.41 USD 62.61 USD 62.61 USD 52.30 USD 52.30 USD 52.05 USD 52.05 USD 73.94 USD 73.94 USD 45.93 USD 45.93 USD 72.45 USD 72.45 USD 64.30 USD 64.30 USD 40.52 USD 40.52 USD 66.56 USD 66.56 USD 53.21 USD 53.21 USD 75.53 USD 75.53 USD 66.34 USD 66.34 USD 52.34 USD 52.34 USD 67.40 USD 67.40 USD 56.96 USD 56.96 USD 57.18 USD 57.18 USD 83.72 USD 83.72 USD 67.68 USD 67.68 USD 48.02 USD 48.02 USD 53.50 USD 53.50 USD 82.42 USD 82.42 USD