Jordan Michael runs a basketball camp. A group of randomly selected camp participants were asked to give their shirt size. The table below shows the results of the survey. There are $308$ camp participants this year.
Shirt size | Number of participants
:-: | :-:
Small | $6$
Medium | $15$
Large | $23$
Extra large| $12$
Double extra large| $4$
**Based on the data, what is the most reasonable estimate for the number of this year's camp participants who will need a medium shirt?**
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