condition mean min max ZT0-3 0.7605649999999999 0.50659 1.01454 ZT4-7 0.51687 0.51687 0.51687 ZT8-11 1.018235 1.018235 1.018235 ZT12-15 0 0 0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.999195 0.999195 0.999195