condition mean min max ZT0-3 54.004850000000005 54.004850000000005 54.004850000000005 ZT4-7 46.86255 46.86255 46.86255 ZT8-11 76.226 76.226 76.226 ZT12-15 102.397 102.397 102.397 ZT16-19 83.28655 83.28655 83.28655 ZT20-23 72.90265 72.90265 72.90265