condition mean min max ZT0-3 171.05 171.05 171.05 ZT4-7 262.0 262.0 262.0 ZT8-11 228.35 228.35 228.35 ZT12-15 344.85 344.85 344.85 ZT16-19 296.3 296.3 296.3 ZT20-23 311.45000000000005 311.45000000000005 311.45000000000005