condition mean min max ZT0-3 56.400000000000006 56.400000000000006 56.400000000000006 ZT4-7 132.1 132.1 132.1 ZT8-11 100.85 100.85 100.85 ZT12-15 111.1 111.1 111.1 ZT16-19 114.85 114.85 114.85 ZT20-23 115.9 115.9 115.9