condition mean min max ZT0-3 38.928353870833334 34.99526396500001 42.86144377666667 ZT4-7 41.467137295 38.8277911 44.106483489999995 ZT8-11 50.844501449999996 44.47288639 57.21611651 ZT12-15 40.721604631666665 33.71348858333333 47.72972068 ZT16-19 41.54877022166667 39.49436859666667 43.60317184666667 ZT20-23 41.361916855000004 34.038447356666666 48.685386353333335