condition mean min max ZT0-3 324.85 324.85 324.85 ZT4-7 284.1 284.1 284.1 ZT8-11 201.2 201.2 201.2 ZT12-15 272.6 272.6 272.6 ZT16-19 280.35 280.35 280.35 ZT20-23 294.20000000000005 294.20000000000005 294.20000000000005