condition mean min max ZT0-3 0.30687 0.250939 0.362801 ZT4-7 0.12743 0.12743 0.12743 ZT8-11 0.1085824 0.1085824 0.1085824 ZT12-15 0 0 0 ZT16-19 0.35685750000000005 0.35685750000000005 0.35685750000000005 ZT20-23 0.305569 0.305569 0.305569