condition mean min max ZT0-3 103.126393 103.126393 103.126393 ZT4-7 101.49826150000001 101.49826150000001 101.49826150000001 ZT8-11 115.328318 115.328318 115.328318 ZT12-15 94.5171215 94.5171215 94.5171215 ZT16-19 140.0936175 140.0936175 140.0936175 ZT20-23 153.199412 153.199412 153.199412