condition mean min max ZT0-3 1477.4499999999998 1477.4499999999998 1477.4499999999998 ZT4-7 1050.2 1050.2 1050.2 ZT8-11 1241.85 1241.85 1241.85 ZT12-15 1203.15 1203.15 1203.15 ZT16-19 1304.9499999999998 1304.9499999999998 1304.9499999999998 ZT20-23 1539.65 1539.65 1539.65