2018 2019 2020 $1.471 $2.297 $2,853 172 180 210 207 477 608 465 726 922 Net income Depreciation expense Interest expense Income tax expense Cash Current liabilities Current portion of bank loan payable Bank loan payable, long-term portion Shareholders' equity 69 162 310 851 1,128 1,681 548 1.136 1.268 2192 4544 5,072 6,007 7,757 9,994 The current liabilities include the current portion of bank loan payable (a) Calculate the debt to equity, net debt as a percentage of total capitalization, and interest coverage ratios. (Round answers to 1 decimal place, es. 12 or 1.2%) Net debt as a percentage of total capitalization Interest coverage Debt to equity ratio 2018 112 times % 30.3% 2019 % 77 times 73.2 % 41.1 times 96 634 2020 36.9%