condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0092063 0.0092063 0.0092063 ZT8-11 0.0098569 0.0098569 0.0098569 ZT12-15 0.00638765 0.00638765 0.00638765 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0