condition mean min max ZT0-3 0.37604075 0.3444155 0.407666 ZT4-7 1.79503 1.79503 1.79503 ZT8-11 0.8323585 0.8323585 0.8323585 ZT12-15 0 0 0 ZT16-19 0.67609 0.67609 0.67609 ZT20-23 0.882962 0.882962 0.882962