condition mean min max ZT0-3 125.1 125.1 125.1 ZT4-7 89.4 89.4 89.4 ZT8-11 112.0 112.0 112.0 ZT12-15 136.6 136.6 136.6 ZT16-19 148.5 148.5 148.5 ZT20-23 136.65 136.65 136.65