condition mean min max ZT0-3 0.02113325 0.02113325 0.02113325 ZT4-7 0.123819 0.123819 0.123819 ZT8-11 0.02006365 0.02006365 0.02006365 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0