condition mean min max ZT0-3 409.43 409.43 409.43 ZT4-7 321.2955 321.2955 321.2955 ZT8-11 310.7595 310.7595 310.7595 ZT12-15 323.5625 323.5625 323.5625 ZT16-19 474.764 474.764 474.764 ZT20-23 383.2365 383.2365 383.2365