condition mean min max ZT0-3 0.011094325 0.0 0.02218865 ZT4-7 0.0218768 0.0218768 0.0218768 ZT8-11 0.0225867 0.0225867 0.0225867 ZT12-15 0 0 0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0