condition mean min max ZT0-3 116.58680000000001 112.42360000000001 120.75 ZT4-7 105.07260000000001 105.07260000000001 105.07260000000001 ZT8-11 117.41709999999999 117.41709999999999 117.41709999999999 ZT12-15 177.1375 142.893 211.382 ZT16-19 184.793 184.793 184.793 ZT20-23 145.45966666666666 145.45966666666666 145.45966666666666