condition mean min max ZT0-3 92.2 92.2 92.2 ZT4-7 66.4 66.4 66.4 ZT8-11 97.9 97.9 97.9 ZT12-15 115.1 115.1 115.1 ZT16-19 123.15 123.15 123.15 ZT20-23 97.25 97.25 97.25