condition mean min max ZT0-3 604.3 604.3 604.3 ZT4-7 944.5 944.5 944.5 ZT8-11 1202.0500000000002 1202.0500000000002 1202.0500000000002 ZT12-15 2101.6499999999996 2101.6499999999996 2101.6499999999996 ZT16-19 1915.65 1915.65 1915.65 ZT20-23 986.95 986.95 986.95