condition mean min max ZT0-3 0.2412193 0.0818937 0.4005449 ZT4-7 0.6222380000000001 0.6222380000000001 0.6222380000000001 ZT8-11 0.24401675 0.24401675 0.24401675 ZT12-15 0 0 0 ZT16-19 1.6504599999999998 1.6504599999999998 1.6504599999999998 ZT20-23 1.49976 1.49976 1.49976