condition mean min max ZT0-3 17267.88333333333 15695.8 18900.6 ZT4-7 17756.1 17756.1 17756.1 ZT8-11 16748.8 16748.8 16748.8 ZT12-15 17100.274999999998 16757.699999999997 17442.85 ZT16-19 19518.2 19518.2 19518.2 ZT20-23 17468.35 17468.35 17468.35