Using the following financial data of Johnson & Johnson for the years 2018, 2019, and 2020, perform the required analysis:

	2018	2019	2020
Revenue	$81,581	$82,059	$82,584
Cost of Revenue	$28,311	$28,899	$29,423
Gross Profit	$53,270	$53,160	$53,161
Operating Expenses	$29,322	$29,924	$30,177
Operating Income	$23,948	$23,236	$22,984
Net Income	$15,297	$15,119	$14,714

	2018	2019	2020
Total Assets	$152,954	$157,728	$174,894
Total Liabilities	$84,190	$88,378	$97,902
Shareholders' Equity	$68,764	$69,350	$76,992

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 the financial health and performance trend of Johnson & Johnson.