condition mean min max ZT0-3 0.016040725 0.0 0.03208145 ZT4-7 0.03268865 0.03268865 0.03268865 ZT8-11 0.0317397 0.0317397 0.0317397 ZT12-15 0 0 0 ZT16-19 0.0316326 0.0316326 0.0316326 ZT20-23 0.0 0.0 0.0