condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.014072569750000001 0.0 0.028145139500000003 ZT16-19 0.0 0.0 0.0 ZT20-23 0.03510635125 0.0 0.0702127025