condition mean min max ZT0-3 166.05 166.05 166.05 ZT4-7 140.6 140.6 140.6 ZT8-11 134.85 134.85 134.85 ZT12-15 129.1 129.1 129.1 ZT16-19 149.15 149.15 149.15 ZT20-23 204.35000000000002 204.35000000000002 204.35000000000002