condition mean min max ZT0-3 0.99429749825 0.154540918 1.8340540785000001 ZT4-7 4.24111236675 4.094060685 4.3881640485 ZT8-11 4.786937313999999 4.691397375999999 4.882477252 ZT12-15 5.72782942075 5.3424706685 6.113188172999999 ZT16-19 3.910606819 3.7420585375 4.0791551004999995 ZT20-23 2.24474418675 1.59241535 2.8970730235