condition mean min max ZT0-3 40.220600000000005 37.65475 42.78645 ZT4-7 41.5302 41.5302 41.5302 ZT8-11 77.5658 77.5658 77.5658 ZT12-15 0 0 0 ZT16-19 86.3385 86.3385 86.3385 ZT20-23 66.15195 66.15195 66.15195