condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.522965 0.522965 0.522965 ZT12-15 0.54161 0.54161 0.54161 ZT16-19 0.0 0.0 0.0 ZT20-23 0.000473623 0.000473623 0.000473623