condition mean min max ZT0-3 28.318575000000003 28.108800000000002 28.52835 ZT4-7 28.058149999999998 28.058149999999998 28.058149999999998 ZT8-11 36.8682 36.8682 36.8682 ZT12-15 0 0 0 ZT16-19 52.05765 52.05765 52.05765 ZT20-23 36.54725 36.54725 36.54725