condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.02188925 0.02188925 0.02188925 ZT8-11 0.0 0.0 0.0 ZT12-15 0.01796335 0.01796335 0.01796335 ZT16-19 0.1086845 0.1086845 0.1086845 ZT20-23 0.0 0.0 0.0