condition mean min max ZT0-3 403.95 403.95 403.95 ZT4-7 345.8 345.8 345.8 ZT8-11 405.95 405.95 405.95 ZT12-15 424.8 424.8 424.8 ZT16-19 491.25 491.25 491.25 ZT20-23 400.4 400.4 400.4