condition mean min max ZT0-3 63.35 63.35 63.35 ZT4-7 63.5 63.5 63.5 ZT8-11 93.25 93.25 93.25 ZT12-15 152.7 152.7 152.7 ZT16-19 107.0 107.0 107.0 ZT20-23 145.9 145.9 145.9