condition mean min max ZT0-3 3.68960025 1.8385605 5.54064 ZT4-7 1.5102 1.5102 1.5102 ZT8-11 25.1045 25.1045 25.1045 ZT12-15 0 0 0 ZT16-19 3.797245 3.797245 3.797245 ZT20-23 0.829987 0.829987 0.829987