condition mean min max ZT0-3 1.10172 1.0718100000000002 1.13163 ZT4-7 1.0317310000000002 1.0317310000000002 1.0317310000000002 ZT8-11 1.37621 1.37621 1.37621 ZT12-15 0 0 0 ZT16-19 2.0154549999999998 2.0154549999999998 2.0154549999999998 ZT20-23 1.5560100000000001 1.5560100000000001 1.5560100000000001