condition mean min max ZT0-3 64.5151 63.260400000000004 65.7698 ZT4-7 55.55155 55.55155 55.55155 ZT8-11 80.0564 80.0564 80.0564 ZT12-15 0 0 0 ZT16-19 109.11335 109.11335 109.11335 ZT20-23 70.601 70.601 70.601