condition mean min max ZT0-3 1.5284681742500001 0.093817571 2.9631187775 ZT4-7 17.867614597 9.220448669 26.514780525 ZT8-11 46.683942437499994 39.665532655 53.702352219999995 ZT12-15 45.006938685 41.53908587 48.4747915 ZT16-19 35.561768115 34.939017905 36.184518325 ZT20-23 43.685313785 40.818789734999996 46.551837835