condition mean min max ZT0-3 34.203199999999995 34.203199999999995 34.203199999999995 ZT4-7 23.9185 23.9185 23.9185 ZT8-11 37.8103 37.8103 37.8103 ZT12-15 42.86005 42.86005 42.86005 ZT16-19 44.0723 44.0723 44.0723 ZT20-23 41.6312 41.6312 41.6312