condition mean min max ZT0-3 92.11425 92.11425 92.11425 ZT4-7 112.928882 112.928882 112.928882 ZT8-11 117.13650100000001 117.13650100000001 117.13650100000001 ZT12-15 130.3148125 130.3148125 130.3148125 ZT16-19 101.3081365 101.3081365 101.3081365 ZT20-23 130.0680745 130.0680745 130.0680745