Among children who consume3 sugar-sweetened beverages (12 oz.) a week, a high percentage reach an above normal (overweight or obese) BMI. A large-scale population-based study found that, of 20,748 children examined, 375 children had an above normal BMI. The cumulative incidence of an above normal BMI among children who consumed <3 sugar-sweetened beverages a week was 1.2 per 100 children. What proportion of an above average BMI among elementary school children is attributable consuming3 sugar-sweetened beverages a week?