condition mean min max ZT0-3 3.901195 3.901195 3.901195 ZT4-7 0.0 0.0 0.0 ZT8-11 5.988195 5.988195 5.988195 ZT12-15 1.685405 1.685405 1.685405 ZT16-19 7.429525 7.429525 7.429525 ZT20-23 13.22305 13.22305 13.22305