condition mean min max ZT0-3 63.481700000000004 63.481700000000004 63.481700000000004 ZT4-7 42.18155 42.18155 42.18155 ZT8-11 64.16745 64.16745 64.16745 ZT12-15 108.8305 108.8305 108.8305 ZT16-19 119.51599999999999 119.51599999999999 119.51599999999999 ZT20-23 87.3923 87.3923 87.3923