condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.00621165 0.00621165 0.00621165 ZT12-15 0.0065235499999999995 0.0065235499999999995 0.0065235499999999995 ZT16-19 0.0053343083333333334 0.0053343083333333334 0.0053343083333333334 ZT20-23 0.0 0.0 0.0