condition mean min max ZT0-3 288.25 288.25 288.25 ZT4-7 179.9 179.9 179.9 ZT8-11 182.25 182.25 182.25 ZT12-15 220.89999999999998 220.89999999999998 220.89999999999998 ZT16-19 198.8 198.8 198.8 ZT20-23 311.45 311.45 311.45