condition mean min max ZT0-3 89.495 88.99805 89.7575 ZT4-7 78.9699 78.9699 78.9699 ZT8-11 117.0565 117.0565 117.0565 ZT12-15 145.6155 137.4225 153.80849999999998 ZT16-19 116.86449999999999 116.86449999999999 116.86449999999999 ZT20-23 93.81954999999999 93.81954999999999 93.81954999999999