condition mean min max ZT0-3 0.041620500000000005 0.041620500000000005 0.041620500000000005 ZT4-7 0.08572779999999999 0.08572779999999999 0.08572779999999999 ZT8-11 0.0408422 0.0408422 0.0408422 ZT12-15 0.09573809999999999 0.09573809999999999 0.09573809999999999 ZT16-19 0.06573024999999999 0.06573024999999999 0.06573024999999999 ZT20-23 0.08348225000000001 0.08348225000000001 0.08348225000000001