condition mean min max ZT0-3 0.016671500000000002 0.016671500000000002 0.016671500000000002 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0182405 0.0182405 0.0182405 ZT20-23 0.014864533333333332 0.014864533333333332 0.014864533333333332