condition mean min max ZT0-3 425.728785175 418.38595705 433.0716133 ZT4-7 245.00695885 192.57383095 297.44008675 ZT8-11 123.90463914 117.52079524999999 130.28848303 ZT12-15 130.16661095 121.59398460000001 138.73923729999998 ZT16-19 132.779682025 122.84865355 142.7107105 ZT20-23 117.602480775 112.71447875 122.4904828