A store surveyed their customers to find out their ages. The bar graph below shows the number of customers in each age group. All frequencies in the bar graph below are multiples of 5.

[Graphs generated by this script: setBorder(28,45,0,10); initPicture(0,12,0,40);axes(1000,5,1,1000,5); fill="blue"; stroke="black";textabs([315,0],"Age","above");rect([1,0],[3,30]);text([2,0],"under 17","below");rect([3,0],[5,35]);text([4,0],"18-24","below");rect([5,0],[7,40]);text([6,0],"25-34","below");rect([7,0],[9,25]);text([8,0],"35-50","below");rect([9,0],[11,15]);text([10,0],"over 50","below");]

What percent of customers surveyed were 18-24? Round your answer to 1 decimal place.

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