condition mean min max ZT0-3 0.7834895 0.7834895 0.7834895 ZT4-7 0.885256 0.885256 0.885256 ZT8-11 0.6133535 0.6133535 0.6133535 ZT12-15 0.4476985 0.4476985 0.4476985 ZT16-19 0.9218 0.9218 0.9218 ZT20-23 0.6689879999999999 0.6689879999999999 0.6689879999999999