condition mean min max ZT0-3 290.15 290.15 290.15 ZT4-7 211.9 211.9 211.9 ZT8-11 150.5 150.5 150.5 ZT12-15 180.0 180.0 180.0 ZT16-19 199.2 199.2 199.2 ZT20-23 271.9 271.9 271.9