condition mean min max ZT0-3 3092.7 3092.7 3092.7 ZT4-7 3494.3 3494.3 3494.3 ZT8-11 3294.45 3294.45 3294.45 ZT12-15 3213.1499999999996 3213.1499999999996 3213.1499999999996 ZT16-19 3386.15 3386.15 3386.15 ZT20-23 3488.45 3488.45 3488.45