condition mean min max ZT0-3 404.35 404.35 404.35 ZT4-7 296.0 296.0 296.0 ZT8-11 208.75 208.75 208.75 ZT12-15 239.5 239.5 239.5 ZT16-19 347.75 347.75 347.75 ZT20-23 450.20000000000005 450.20000000000005 450.20000000000005