condition mean min max ZT0-3 1.0460675 0.618695 1.47344 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.305975 0.0 0.61195 ZT20-23 0 0 0