condition mean min max ZT0-3 0.7878320000000001 0.7878320000000001 0.7878320000000001 ZT4-7 2.058005 2.058005 2.058005 ZT8-11 4.362615 4.362615 4.362615 ZT12-15 0.9187105 0.9187105 0.9187105 ZT16-19 0.460063 0.460063 0.460063 ZT20-23 0.2097795 0.2097795 0.2097795