> 0.009 contour
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> 0.009 contour
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> 0.018 contour
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> 0.018 contour
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> 0.018 contour
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> 0.027 contour
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> 0.036 contour
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> 0.036 contour
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> 0.045 contour
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> 0.054 contour
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> 0.063 contour
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