condition mean min max ZT0-3 93.134878 93.134878 93.134878 ZT4-7 48.295104 48.295104 48.295104 ZT8-11 36.2518995 36.2518995 36.2518995 ZT12-15 43.808878 43.808878 43.808878 ZT16-19 88.699617 88.699617 88.699617 ZT20-23 109.97749200000001 109.97749200000001 109.97749200000001