condition mean min max ZT0-3 0.015393364 0.0 0.030786728 ZT4-7 0.04364099849999999 0.0 0.08728199699999999 ZT8-11 0.22331774575000002 0.1460046535 0.300630838 ZT12-15 0.21133635125 0.09664964649999999 0.32602305600000003 ZT16-19 0.05828262375 0.056237392000000004 0.0603278555 ZT20-23 0.0 0.0 0.0