condition mean min max ZT0-3 1768.7 1768.7 1768.7 ZT4-7 1370.4 1370.4 1370.4 ZT8-11 1194.15 1194.15 1194.15 ZT12-15 1116.7 1116.7 1116.7 ZT16-19 1223.75 1223.75 1223.75 ZT20-23 1525.65 1525.65 1525.65