condition mean min max ZT0-3 0.729953 0.7076 0.7523059999999999 ZT4-7 1.0370315 1.0370315 1.0370315 ZT8-11 0.7043455 0.7043455 0.7043455 ZT12-15 0 0 0 ZT16-19 1.0704725 1.0704725 1.0704725 ZT20-23 0.7532544999999999 0.7532544999999999 0.7532544999999999