condition mean min max ZT0-3 293.05 293.05 293.05 ZT4-7 104.9 104.9 104.9 ZT8-11 186.45 186.45 186.45 ZT12-15 255.45000000000002 255.45000000000002 255.45000000000002 ZT16-19 326.15 326.15 326.15 ZT20-23 337.35 337.35 337.35