condition mean min max ZT0-3 62.485175 36.915549999999996 88.0548 ZT4-7 0.82843 0.82843 0.82843 ZT8-11 0.2904608 0.2904608 0.2904608 ZT12-15 0 0 0 ZT16-19 2.0181795 2.0181795 2.0181795 ZT20-23 1.639985 1.639985 1.639985