condition mean min max ZT0-3 82.65 82.65 82.65 ZT4-7 254.8 254.8 254.8 ZT8-11 288.54999999999995 288.54999999999995 288.54999999999995 ZT12-15 202.5 202.5 202.5 ZT16-19 186.3 186.3 186.3 ZT20-23 165.0 165.0 165.0