The following data consist of the profit margins (in percent) for a group of 20 firms.
Construct a stem-and-leaf display for these data.

25.2 16.1 22.2 15.2 14.1 15.2 14.4 15.9 10.4 14.0
16.4 13.9 10.4 13.8 14.9 16.1 15.8 13.2 16.8 12.6

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