condition mean min max ZT0-3 369.1 369.1 369.1 ZT4-7 222.1 222.1 222.1 ZT8-11 202.7 202.7 202.7 ZT12-15 226.4 226.4 226.4 ZT16-19 252.9 252.9 252.9 ZT20-23 389.45 389.45 389.45