condition mean min max ZT0-3 89.54766607166667 82.41865358 96.67667856333333 ZT4-7 123.57182877166667 98.24242094333333 148.9012366 ZT8-11 140.80039269999997 137.099204 144.5015814 ZT12-15 141.8672059666667 133.1464158 150.58799613333335 ZT16-19 125.06368975000001 124.2121044 125.9152751 ZT20-23 111.96544538166667 102.00059746333334 121.9302933