condition mean min max ZT0-3 0.018911025 0.0 0.03782205 ZT4-7 0.49725 0.49725 0.49725 ZT8-11 0.3047605 0.3047605 0.3047605 ZT12-15 0 0 0 ZT16-19 0.0371461 0.0371461 0.0371461 ZT20-23 0.075128 0.075128 0.075128