condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.044787152574999996 0.044787152574999996 0.044787152574999996 ZT12-15 0.727214 0.727214 0.727214 ZT16-19 0.00034550333333333336 0.00034550333333333336 0.00034550333333333336 ZT20-23 0.23968199999999998 0.23968199999999998 0.23968199999999998