Table:
Fiscal Year	Variance in

(In millions, except for percentages)	2018	2017	Dollar	Percent

Net revenues	$2,280	$1,664	$616	37%

Percentage of total net revenues	47%	41%

Operating income	$1,111	$839	$272	32%

Operating margin	49%	50%

What is the count of rows and columns in the given table? Present the final answer in a JSON format {"row_number": "m", "column_number": "n"} such as {"row_number": "2", "column_number": "3"}.

There are 6 rows and 5 columns in the table. So, the final answer is {"row_number": "6", "column_number": "5"}.