condition mean min max ZT0-3 0.00590425 0.0 0.01771275 ZT4-7 0.02707005 0.02707005 0.02707005 ZT8-11 0.327301 0.327301 0.327301 ZT12-15 0.32769574999999995 0.1206025 0.534789 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0