condition mean min max ZT0-3 7644.9 7644.9 7644.9 ZT4-7 4540.4 4540.4 4540.4 ZT8-11 4566.25 4566.25 4566.25 ZT12-15 4817.9 4817.9 4817.9 ZT16-19 4646.1 4646.1 4646.1 ZT20-23 6081.65 6081.65 6081.65