condition mean min max ZT0-3 0.31119600000000003 0.308792 0.3136 ZT4-7 0.23203649999999998 0.23203649999999998 0.23203649999999998 ZT8-11 1.031062 1.031062 1.031062 ZT12-15 0 0 0 ZT16-19 0.7195125 0.7195125 0.7195125 ZT20-23 0.6411655 0.6411655 0.6411655