condition mean min max ZT0-3 0.012832749999999999 0.0 0.01994145 ZT4-7 0.0094108 0.0094108 0.0094108 ZT8-11 0.01905765 0.01905765 0.01905765 ZT12-15 0.0095353 0.0 0.0190706 ZT16-19 0.0 0.0 0.0 ZT20-23 0.040927599999999995 0.040927599999999995 0.040927599999999995