condition mean min max ZT0-3 0.02166066225 0.0 0.0433213245 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0393497405 0.0 0.078699481 ZT12-15 0.13031039500000002 0.0981841105 0.16243667950000001 ZT16-19 0.04244495575 0.0 0.0848899115 ZT20-23 0.0367767155 0.0 0.073553431