condition mean min max ZT0-3 0.0055750166666666675 0.0 0.01672505 ZT4-7 0.01535855 0.01535855 0.01535855 ZT8-11 0.0 0.0 0.0 ZT12-15 0.008768975 0.0 0.01753795 ZT16-19 0.01505925 0.01505925 0.01505925 ZT20-23 0.052241499999999996 0.052241499999999996 0.052241499999999996