required: time series analysis and interpretation for the 3 Leverage Ratios and Profitability Ratios

2016 2017 2018 Debt-to-capital ratio Debt-to-equity ratio 0.3041 0.3237 0.2822 0.4370 0.4787 0.3932 0.3041 0.3237 0.2822 Debt-to-asset ratio Gross profit margin 2016 2017 2018 0.6792 0.6780 0.6643 0.1929 0.2332 0.2709 0.2476 0.2514 0.2551 Operating profit margin Net profit margin 2016 2017 2018 Debt-to-capital ratio Debt-to-equity ratio 0.3041 0.3237 0.2822 0.4370 0.4787 0.3932 0.3041 0.3237 0.2822 Debt-to-asset ratio Gross profit margin 2016 2017 2018 0.6792 0.6780 0.6643 0.1929 0.2332 0.2709 0.2476 0.2514 0.2551 Operating profit margin Net profit margin