condition mean min max ZT0-3 16.40867080325 9.967889212000001 22.8494523945 ZT4-7 95.72806769750001 74.87941799500001 116.5767174 ZT8-11 82.5653407625 68.26333868500001 96.86734283999999 ZT12-15 82.592778665 62.67178545499999 102.513771875 ZT16-19 95.7572129825 93.213354815 98.30107114999998 ZT20-23 121.49606112500001 117.04746815000001 125.94465410000001