condition mean min max ZT0-3 148.4 148.4 148.4 ZT4-7 93.4 93.4 93.4 ZT8-11 121.45 121.45 121.45 ZT12-15 109.05 109.05 109.05 ZT16-19 110.2 110.2 110.2 ZT20-23 162.75 162.75 162.75