condition mean min max ZT0-3 48.897549999999995 48.897549999999995 48.897549999999995 ZT4-7 27.9695 27.9695 27.9695 ZT8-11 80.4264 80.4264 80.4264 ZT12-15 48.66915 48.66915 48.66915 ZT16-19 109.8546 109.8546 109.8546 ZT20-23 60.48055 60.48055 60.48055