condition mean min max ZT0-3 0.10770910249999999 0.057295213 0.158122992 ZT4-7 0.61241160325 0.2277424285 0.997080778 ZT8-11 3.786715102 2.175251577 5.398178627 ZT12-15 4.89388553525 4.4611782555 5.326592815 ZT16-19 1.90228575475 1.6107472385000001 2.193824271 ZT20-23 0.30768997899999995 0.10229285099999999 0.5130871069999999