condition mean min max ZT0-3 0.027892583333333335 0.0 0.07103165 ZT4-7 0.011445 0.011445 0.011445 ZT8-11 0.06961945 0.06961945 0.06961945 ZT12-15 0.0501761 0.0257153 0.0746369 ZT16-19 0.08865635 0.08865635 0.08865635 ZT20-23 0.0253387 0.0253387 0.0253387