condition mean min max ZT0-3 0.0145609 0.0 0.0436827 ZT4-7 0.0381392 0.0381392 0.0381392 ZT8-11 0.2406345 0.2406345 0.2406345 ZT12-15 0.14750180000000002 0.08360809999999999 0.21139550000000001 ZT16-19 0.037396 0.037396 0.037396 ZT20-23 0.0422032 0.0422032 0.0422032