condition mean min max ZT0-3 58.2 58.2 58.2 ZT4-7 43.3 43.3 43.3 ZT8-11 39.7 39.7 39.7 ZT12-15 37.35 37.35 37.35 ZT16-19 124.2 124.2 124.2 ZT20-23 97.1 97.1 97.1