Analyze the financial data of Johnson & Johnson provided below for the years 2019, 2020, and 2021:

	2019	2020	2021
Revenue	$82,059	$82,584	$93,775
Cost of Goods Sold	$26,890	$27,634	$30,495
Gross Profit	$55,169	$54,950	$63,280
Operating Expenses	$34,586	$35,145	$37,840
Operating Income	$20,583	$19,805	$25,440
Net Income	$15,119	$14,714	$20,878

	2019	2020	2021
Total Assets	$157,728	$174,894	$187,533
Total Liabilities	$97,144	$103,581	$106,129
Shareholders' Equity	$60,584	$71,313	$81,404

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. Discuss the financial performance trend of Johnson & Johnson.