condition mean min max ZT0-3 201.35000000000002 201.35000000000002 201.35000000000002 ZT4-7 462.6 462.6 462.6 ZT8-11 701.5 701.5 701.5 ZT12-15 1128.6 1128.6 1128.6 ZT16-19 880.25 880.25 880.25 ZT20-23 408.4 408.4 408.4