What is the standard of 15.50, 15.75, 13.15, 13.75, 17.50, 17.18, 16.05, 15.25, 15.80, 16.10, 17.80, 15.20, 18.01, 17.98, 15.68, 15.20, 18.01, 17.98, 15.68, 15.20, 17.40, 16.00, 15.15, 16.25
What is the standard of 15.50, 15.75, 13.15, 13.75, 17.50, 17.18, 16.05, 15.25, 15.80, 16.10, 17.80, 15.20, 18.01, 17.98, 15.68, 15.20, 18.01, 17.98, 15.68, 15.20, 17.40, 16.00, 15.15, 16.25
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