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["ratio","age"]
[0.46,0.5]
[0.47,1.5]
[0.56000000000000005,2.5]
[0.61,3.5]
[0.61,4.5]
[0.67,5.5]
[0.68,6.5]
[0.78,7.5]
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[0.75,12.5]
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