nov 2012: +61.00 units
dec 2012: +47.10 units jan 2013: -250.05 units feb 2013: +45.70 units
mar 2013: +03.55 units
april 2013: +01.50 units
may 2013: +140.75 units
Jun 2013: +06.50 units July 2013: +04.00 units AUG 2013: -29.00 units Sept 2013: +102.75 units Oct 2013: -36.00 units