condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 2.187695 2.187695 2.187695 ZT8-11 1.77247 1.77247 1.77247 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0