condition mean min max ZT0-3 1181.65 1181.65 1181.65 ZT4-7 1503.4 1503.4 1503.4 ZT8-11 1570.45 1570.45 1570.45 ZT12-15 1059.5 1059.5 1059.5 ZT16-19 877.15 877.15 877.15 ZT20-23 933.55 933.55 933.55