condition mean min max ZT0-3 567.55 567.55 567.55 ZT4-7 527.7 527.7 527.7 ZT8-11 558.3 558.3 558.3 ZT12-15 844.9000000000001 844.9000000000001 844.9000000000001 ZT16-19 853.1 853.1 853.1 ZT20-23 816.0 816.0 816.0