liters group 5.32 experimental 5.60 experimental 5.74 experimental 6.06 experimental 6.32 experimental 6.34 experimental 6.79 experimental 7.18 experimental 4.50 control 4.78 control 4.79 control 4.86 control 5.41 control 5.70 control 6.08 control 6.21 control