condition mean min max ZT0-3 138.024 130.48250000000002 145.5655 ZT4-7 143.8355 143.8355 143.8355 ZT8-11 152.873 152.873 152.873 ZT12-15 0 0 0 ZT16-19 199.977 199.977 199.977 ZT20-23 134.048 134.048 134.048