condition mean min max ZT0-3 0.5042212500000001 0.499945 0.5084975 ZT4-7 1.095322 1.095322 1.095322 ZT8-11 0.456423 0.456423 0.456423 ZT12-15 0 0 0 ZT16-19 0.933848 0.933848 0.933848 ZT20-23 0.781072 0.781072 0.781072