condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 30.412300000000002 30.412300000000002 30.412300000000002 ZT12-15 218.47375 164.125 272.8225 ZT16-19 110.25005 110.25005 110.25005 ZT20-23 10.47189 10.47189 10.47189