condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.4675405 0.4675405 0.4675405 ZT12-15 0.6275759999999999 0.454692 0.80046 ZT16-19 1.516985 1.516985 1.516985 ZT20-23 1.0002625 1.0002625 1.0002625