condition mean min max ZT0-3 0.0042648 0.0042648 0.0042648 ZT4-7 0.014894899999999999 0.014894899999999999 0.014894899999999999 ZT8-11 0.0299798 0.0299798 0.0299798 ZT12-15 0.01419175 0.01419175 0.01419175 ZT16-19 0.0054846999999999995 0.0054846999999999995 0.0054846999999999995 ZT20-23 0.0150636 0.0150636 0.0150636