condition mean min max ZT0-3 99.0868 99.0868 99.0868 ZT4-7 65.7587 65.7587 65.7587 ZT8-11 40.17935 40.17935 40.17935 ZT12-15 29.67495 29.67495 29.67495 ZT16-19 68.6936 68.6936 68.6936 ZT20-23 92.12119999999999 92.12119999999999 92.12119999999999