condition mean min max ZT0-3 60.4406 60.4406 60.4406 ZT4-7 41.1738 41.1738 41.1738 ZT8-11 60.8031 60.8031 60.8031 ZT12-15 47.2709 47.2709 47.2709 ZT16-19 82.21535 82.21535 82.21535 ZT20-23 67.06790000000001 67.06790000000001 67.06790000000001