condition mean min max ZT0-3 505.2 505.2 505.2 ZT4-7 605.7 605.7 605.7 ZT8-11 477.9 477.9 477.9 ZT12-15 438.75 438.75 438.75 ZT16-19 561.9 561.9 561.9 ZT20-23 575.4000000000001 575.4000000000001 575.4000000000001