condition mean min max ZT0-3 367.1 367.1 367.1 ZT4-7 328.5 328.5 328.5 ZT8-11 326.0 326.0 326.0 ZT12-15 365.05 365.05 365.05 ZT16-19 390.9 390.9 390.9 ZT20-23 400.25 400.25 400.25