condition mean min max ZT0-3 98.25625 98.25625 98.25625 ZT4-7 63.790099999999995 63.790099999999995 63.790099999999995 ZT8-11 71.30905 71.30905 71.30905 ZT12-15 66.92685 66.92685 66.92685 ZT16-19 93.90875 93.90875 93.90875 ZT20-23 101.70349999999999 101.70349999999999 101.70349999999999