condition mean min max ZT0-3 85.47909999999999 74.60159999999999 96.3566 ZT4-7 136.82999999999998 136.82999999999998 136.82999999999998 ZT8-11 121.5615 121.5615 121.5615 ZT12-15 0 0 0 ZT16-19 108.10849999999999 108.10849999999999 108.10849999999999 ZT20-23 111.01050000000001 111.01050000000001 111.01050000000001