condition mean min max ZT0-3 70.74860000000001 70.74860000000001 70.74860000000001 ZT4-7 63.5357 63.5357 63.5357 ZT8-11 72.22030000000001 72.22030000000001 72.22030000000001 ZT12-15 52.4576 52.4576 52.4576 ZT16-19 47.15475 47.15475 47.15475 ZT20-23 58.5908 58.5908 58.5908