condition mean min max ZT0-3 171.76915126749998 133.052367935 210.48593459999998 ZT4-7 75.01619901250001 70.73464213 79.29775589500001 ZT8-11 71.41170868750001 63.039708065 79.78370931 ZT12-15 78.32964137249999 76.23703270499999 80.42225004 ZT16-19 95.6982548875 84.848998795 106.54751098 ZT20-23 138.59679505 125.34790759999998 151.8456825