condition mean min max ZT0-3 333.08136 333.08136 333.08136 ZT4-7 279.6740795 279.6740795 279.6740795 ZT8-11 393.375594 393.375594 393.375594 ZT12-15 212.0224585 212.0224585 212.0224585 ZT16-19 104.86263600000001 104.86263600000001 104.86263600000001 ZT20-23 94.09402399999999 94.09402399999999 94.09402399999999