condition mean min max ZT0-3 1224.65 1224.65 1224.65 ZT4-7 805.8 805.8 805.8 ZT8-11 813.85 813.85 813.85 ZT12-15 860.3 860.3 860.3 ZT16-19 1056.3 1056.3 1056.3 ZT20-23 1408.85 1408.85 1408.85