;2014*;2015*;2016*; Key figures; ; ; ; Operating profit margin. Per cent;29.24;9.90;9.01; Operating margin. Per cent;6.03;9.19;16.43; Return on total assets. Per cent;11.57;7.40;7.17; Return on equity. Per cent;4.31;5.82;10.09; Equity ratio. Per cent;48.25;44.75;43.05; Current ratio;1.00;1.02;0.87; Ratio of fixed assets to long term capital;1.00;1.08;1.04; Debt-to-equity ratio;1.07;1.23;1.32;