condition mean min max ZT0-3 0.0095429 0.0095429 0.0095429 ZT4-7 0.00658935 0.00658935 0.00658935 ZT8-11 0.00538035 0.00538035 0.00538035 ZT12-15 0.0394266 0.0394266 0.0394266 ZT16-19 0.0114869 0.0114869 0.0114869 ZT20-23 0.04302105 0.04302105 0.04302105