condition mean min max ZT0-3 69.157 67.96085 70.35315 ZT4-7 73.0119 73.0119 73.0119 ZT8-11 213.579 213.579 213.579 ZT12-15 0 0 0 ZT16-19 220.871 220.871 220.871 ZT20-23 141.07999999999998 141.07999999999998 141.07999999999998