wanna find common-size statements of the income statement of this table for 2018 and 2019

	Year ended December 31,
	2018	2019
	(in thousands except share and per share data)
Consolidated
Statements of
Operations:
Revenues:
License	$192,514	$237,879
Maintenance and
professional
services	150,685	196,016
Total revenues	343,199	433,895
Cost of revenues:
License	10,526	10,569
Maintenance and
professional
services	37,935	52,046
Total cost of
revenues(2)	48,461	62,615
Gross profit	294,738	371,280
Operating
expenses:
Research and
development(2)	57,112	72,520
Sales and
marketing(2)	148,290	184,168
General and
administrative(2)	42,044	52,308
Total operating
expenses	247,446	308,996
Operating income	47,292	62,284
Financial income
(expenses), net	4,551	7,800
Income before
taxes on income	51,843	70,084
Taxes on income	-4,771	-7,020
Net income	$47,072	$63,064