condition mean min max ZT0-3 65.080175 62.8619 67.29845 ZT4-7 62.26495 62.26495 62.26495 ZT8-11 149.46699999999998 149.46699999999998 149.46699999999998 ZT12-15 0 0 0 ZT16-19 160.3825 160.3825 160.3825 ZT20-23 110.02 110.02 110.02