'Pie chart gnuplot

Does anyone have example code in gnuplot for a pie chart? I can't find any great example with a simple graph and the text around it and in it with the % signs that shows easily how much each part has of the circle.

Some example data:

Management frames   4596
Control frames  70173
Data frames 40347
TCP packets 36864
HTTP packets    525
ICMP packets    47
Total frames    115116


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