condition mean min max ZT0-3 2.717 2.717 2.717 ZT4-7 1.0209934999999999 1.0209934999999999 1.0209934999999999 ZT8-11 0.944189 0.944189 0.944189 ZT12-15 3.56182 3.56182 3.56182 ZT16-19 3.9080000000000004 3.9080000000000004 3.9080000000000004 ZT20-23 4.047615 4.047615 4.047615