condition mean min max ZT0-3 1029.85 1029.85 1029.85 ZT4-7 1036.8 1036.8 1036.8 ZT8-11 806.55 806.55 806.55 ZT12-15 884.9000000000001 884.9000000000001 884.9000000000001 ZT16-19 1096.5500000000002 1096.5500000000002 1096.5500000000002 ZT20-23 1088.6 1088.6 1088.6