condition mean min max ZT0-3 1.0268948039999999 0.987871223 1.065918385 ZT4-7 0.99292209675 0.778362999 1.2074811945 ZT8-11 7.03963063925 3.2415460125 10.837715266 ZT12-15 20.3220858725 18.208105445 22.4360663 ZT16-19 13.3312613775 11.72528076 14.937241995 ZT20-23 9.78345939675 9.297555649 10.2693631445