condition mean min max ZT0-3 34.842 26.032 43.652 ZT4-7 87.743 87.743 87.743 ZT8-11 105.72515 105.72515 105.72515 ZT12-15 0 0 0 ZT16-19 61.1285 61.1285 61.1285 ZT20-23 49.36855 49.36855 49.36855