condition mean min max ZT0-3 109.4 109.4 109.4 ZT4-7 156.7 156.7 156.7 ZT8-11 99.44999999999999 99.44999999999999 99.44999999999999 ZT12-15 127.8 127.8 127.8 ZT16-19 133.05 133.05 133.05 ZT20-23 101.25 101.25 101.25