condition mean min max ZT0-3 53.05 53.05 53.05 ZT4-7 76.3 76.3 76.3 ZT8-11 105.05 105.05 105.05 ZT12-15 102.6 102.6 102.6 ZT16-19 52.7 52.7 52.7 ZT20-23 61.9 61.9 61.9