Given the following financial data for Ford Motor Company for the years 2018, 2019, and 2020, perform the financial analysis:

	2018	2019	2020
Revenue	$160,338	$155,900	$127,144
Cost of Goods Sold	$134,083	$130,500	$109,764
Gross Profit	$26,255	$25,400	$17,380
Operating Expenses	$18,428	$18,000	$15,200
Operating Income	$7,827	$7,400	$2,180
Net Income	$3,677	$4,900	$1,283

	2018	2019	2020
Total Assets	$256,540	$258,537	$267,238
Total Liabilities	$210,867	$214,600	$227,235
Shareholders' Equity	$45,673	$43,937	$40,003

Requirements:

1. Calculate the gross profit margin for each year.
2. Determine the operating profit margin for each year.
3. Calculate the net profit margin for each year.
4. Compute the return on assets (ROA) for each year.
5. Compute the return on equity (ROE) for each year.
6. Analyze Ford's financial performance trend over these years.