condition mean min max ZT0-3 123.94999999999999 123.94999999999999 123.94999999999999 ZT4-7 89.6 89.6 89.6 ZT8-11 64.6 64.6 64.6 ZT12-15 148.5 148.5 148.5 ZT16-19 110.8 110.8 110.8 ZT20-23 124.9 124.9 124.9