condition mean min max ZT0-3 126.25508247500001 123.93102895000001 128.579136 ZT4-7 120.700941225 112.44098555 128.9608969 ZT8-11 180.8514905 166.3104346 195.39254640000001 ZT12-15 236.55909077500002 228.684559 244.43362255000002 ZT16-19 229.261730425 205.69502914999998 252.8284317 ZT20-23 148.95496492499998 133.38287055 164.52705929999996