condition mean min max ZT0-3 302.85 302.85 302.85 ZT4-7 405.9 405.9 405.9 ZT8-11 426.45 426.45 426.45 ZT12-15 451.65 451.65 451.65 ZT16-19 405.45 405.45 405.45 ZT20-23 336.65 336.65 336.65