condition mean min max ZT0-3 37.05 37.05 37.05 ZT4-7 38.5 38.5 38.5 ZT8-11 54.9 54.9 54.9 ZT12-15 93.9 93.9 93.9 ZT16-19 39.15 39.15 39.15 ZT20-23 43.15 43.15 43.15