condition mean min max ZT0-3 217.10000000000002 217.10000000000002 217.10000000000002 ZT4-7 294.4 294.4 294.4 ZT8-11 259.55 259.55 259.55 ZT12-15 243.85 243.85 243.85 ZT16-19 213.05 213.05 213.05 ZT20-23 183.0 183.0 183.0