condition mean min max ZT0-3 46.741552 46.741552 46.741552 ZT4-7 38.0246 38.0246 38.0246 ZT8-11 40.082837 40.082837 40.082837 ZT12-15 44.448919000000004 44.448919000000004 44.448919000000004 ZT16-19 45.196290000000005 45.196290000000005 45.196290000000005 ZT20-23 38.114802499999996 38.114802499999996 38.114802499999996