condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.41679 0.41679 0.41679 ZT8-11 0.0 0.0 0.0 ZT12-15 0.11946 0.11946 0.11946 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0