condition mean min max ZT0-3 25.262413275249997 16.2832312805 34.24159527 ZT4-7 1.102975222 1.0116557990000001 1.194294645 ZT8-11 1.1721877647499999 0.7871511785 1.557224351 ZT12-15 8.44986982275 3.7051485215000004 13.194591123999999 ZT16-19 32.92706621000001 28.43885058 37.415281840000006 ZT20-23 35.2194441225 29.76054991 40.678338335