condition mean min max ZT0-3 154.5 154.5 154.5 ZT4-7 20.5 20.5 20.5 ZT8-11 94.05 94.05 94.05 ZT12-15 120.25 120.25 120.25 ZT16-19 50.5 50.5 50.5 ZT20-23 108.64999999999999 108.64999999999999 108.64999999999999