condition mean min max ZT0-3 0.36380999999999997 0.36380999999999997 0.36380999999999997 ZT4-7 1.0704015 1.0704015 1.0704015 ZT8-11 1.08969 1.08969 1.08969 ZT12-15 0.698256 0.698256 0.698256 ZT16-19 1.5231733333333335 1.5231733333333335 1.5231733333333335 ZT20-23 0.800822 0.800822 0.800822