condition mean min max ZT0-3 400.8 400.8 400.8 ZT4-7 375.5 375.5 375.5 ZT8-11 397.65 397.65 397.65 ZT12-15 439.9 439.9 439.9 ZT16-19 423.6 423.6 423.6 ZT20-23 399.7 399.7 399.7