condition mean min max ZT0-3 64.04429999999999 64.04429999999999 64.04429999999999 ZT4-7 139.913 139.913 139.913 ZT8-11 115.1605 115.1605 115.1605 ZT12-15 82.45105000000001 82.45105000000001 82.45105000000001 ZT16-19 12.54865 12.54865 12.54865 ZT20-23 8.6298 8.6298 8.6298