condition mean min max ZT0-3 0.6914305000000001 0.6867175 0.6961435 ZT4-7 0.77112 0.77112 0.77112 ZT8-11 0.960644 0.960644 0.960644 ZT12-15 0 0 0 ZT16-19 1.71034 1.71034 1.71034 ZT20-23 0.8594795 0.8594795 0.8594795