Considering Amazon's balance sheet ratios below, please provide a overview of the company's strengths and weaknesses (if any), reasons for the strength/weakness (if any), and reccomendations.

2015

Debt to asset ratio = total liabilities / total assets

8,235 / 65,444 = 12.58%

Debt to equity ratio = total liabilities / shareholders equity

8,235 / 13,384 = 61.53%

2016

Debt to asset ratio = total liabilities / total assets

7,694 / 83,402 = 9.23%

Debt to equity ratio = total liabilities / shareholders equity

7,694 / 19,285 = 39.90%