condition mean min max ZT0-3 99.3 99.3 99.3 ZT4-7 74.4 74.4 74.4 ZT8-11 59.5 59.5 59.5 ZT12-15 115.9 115.9 115.9 ZT16-19 107.5 107.5 107.5 ZT20-23 132.6 132.6 132.6