condition mean min max ZT0-3 240.1885 240.1885 240.1885 ZT4-7 212.4855 212.4855 212.4855 ZT8-11 173.5995 173.5995 173.5995 ZT12-15 153.2415 153.2415 153.2415 ZT16-19 171.606 171.606 171.606 ZT20-23 227.0595 227.0595 227.0595