condition mean min max ZT0-3 66.1678 66.1678 66.1678 ZT4-7 46.64825 46.64825 46.64825 ZT8-11 37.01235 37.01235 37.01235 ZT12-15 76.98599999999999 76.98599999999999 76.98599999999999 ZT16-19 99.6957 99.6957 99.6957 ZT20-23 94.9042 94.9042 94.9042