condition mean min max ZT0-3 0.83305462875 0.797362325 0.8687469325 ZT4-7 2.291641315 1.4738238755 3.1094587545000003 ZT8-11 3.78341524175 3.7357995415 3.831030942 ZT12-15 2.0723803724999996 1.2506215264999998 2.8941392185 ZT16-19 1.359915465 1.3417243170000002 1.378106613 ZT20-23 1.06595593175 0.9004702075 1.2314416559999999