condition mean min max ZT0-3 123.4 123.4 123.4 ZT4-7 86.8 86.8 86.8 ZT8-11 104.80000000000001 104.80000000000001 104.80000000000001 ZT12-15 110.25 110.25 110.25 ZT16-19 153.9 153.9 153.9 ZT20-23 140.9 140.9 140.9