condition mean min max ZT0-3 0.3872533333333333 0.3872533333333333 0.3872533333333333 ZT4-7 12.686399999999999 12.686399999999999 12.686399999999999 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.46819000000000005 0.46819000000000005 0.46819000000000005 ZT20-23 0.0 0.0 0.0