condition mean min max ZT0-3 302.4 302.4 302.4 ZT4-7 263.5 263.5 263.5 ZT8-11 316.9 316.9 316.9 ZT12-15 396.9 396.9 396.9 ZT16-19 514.3 514.3 514.3 ZT20-23 448.75 448.75 448.75