condition mean min max ZT0-3 112.62525 112.453 112.7975 ZT4-7 128.46 128.46 128.46 ZT8-11 131.958 131.958 131.958 ZT12-15 0 0 0 ZT16-19 160.6055 160.6055 160.6055 ZT20-23 115.7755 115.7755 115.7755