LONGITUDINAL ANALYSIS RATIO Gross Profit Margin Operating Profit Margin Net Profit Margin Return on Assets Return on Equity Current ratio Debt-to-Assets Debt-to-Equity 2015 2014 2013 2012 2011 LONGITUDINAL ANALYSIS RATIO Gross Profit Margin Operating Profit Margin Net Profit Margin Return on Assets Return on Equity Current ratio Debt-to-Assets Debt-to-Equity 2015 2014 2013 2012 2011