condition mean min max ZT0-3 120.1 120.1 120.1 ZT4-7 114.4 114.4 114.4 ZT8-11 115.25 115.25 115.25 ZT12-15 95.45 95.45 95.45 ZT16-19 140.4 140.4 140.4 ZT20-23 162.8 162.8 162.8