condition mean min max ZT0-3 0.40376049999999997 0.23544700000000002 0.572074 ZT4-7 1.0397155 1.0397155 1.0397155 ZT8-11 1.19077 1.19077 1.19077 ZT12-15 0 0 0 ZT16-19 1.1123845 1.1123845 1.1123845 ZT20-23 0.742298 0.742298 0.742298