condition mean min max ZT0-3 87.2 87.2 87.2 ZT4-7 130.9 130.9 130.9 ZT8-11 59.05 59.05 59.05 ZT12-15 85.1 85.1 85.1 ZT16-19 40.6 40.6 40.6 ZT20-23 87.1 87.1 87.1