condition mean min max ZT0-3 120.109823875 115.68693975 124.53270800000001 ZT4-7 83.68306053 82.93492860500001 84.431192455 ZT8-11 54.048623434999996 47.776980275 60.320266595 ZT12-15 23.7440633025 21.535206600000002 25.952920004999996 ZT16-19 49.13779878 43.522000335 54.753597225 ZT20-23 72.9150544425 72.277160165 73.55294871999999