condition mean min max ZT0-3 297.9 297.9 297.9 ZT4-7 294.5 294.5 294.5 ZT8-11 211.79999999999998 211.79999999999998 211.79999999999998 ZT12-15 343.05 343.05 343.05 ZT16-19 364.9 364.9 364.9 ZT20-23 323.4 323.4 323.4