condition mean min max ZT0-3 0.0257709 0.0257709 0.0257709 ZT4-7 0.0326625 0.0326625 0.0326625 ZT8-11 0.031072950000000002 0.031072950000000002 0.031072950000000002 ZT12-15 0.0592602 0.0592602 0.0592602 ZT16-19 0.0141795 0.0141795 0.0141795 ZT20-23 0.07080705000000001 0.07080705000000001 0.07080705000000001