condition mean min max ZT0-3 0.36308 0.3601805 0.3659795 ZT4-7 0.653556 0.653556 0.653556 ZT8-11 0.36905699999999997 0.36905699999999997 0.36905699999999997 ZT12-15 0 0 0 ZT16-19 0.2402565 0.2402565 0.2402565 ZT20-23 0.5627165 0.5627165 0.5627165