condition mean min max ZT0-3 0.00567355 0.00567355 0.00567355 ZT4-7 0.0 0.0 0.0 ZT8-11 0.01279515 0.01279515 0.01279515 ZT12-15 0.0207284 0.0207284 0.0207284 ZT16-19 0.03444295 0.03444295 0.03444295 ZT20-23 0.0 0.0 0.0