condition mean min max ZT0-3 0.011355180000000001 0.0 0.019553840000000003 ZT4-7 0.0063314 0.0063314 0.0063314 ZT8-11 0.00317576 0.00317576 0.00317576 ZT12-15 0.0727920325 0.071570115 0.07401395000000001 ZT16-19 0.017339515 0.017339515 0.017339515 ZT20-23 0.01415835 0.01415835 0.01415835