condition mean min max ZT0-3 0.01198613725 0.0 0.0239722745 ZT4-7 0.0 0.0 0.0 ZT8-11 0.2748409055 0.159535071 0.39014674 ZT12-15 2.0012783880000002 1.3868594029999999 2.615697373 ZT16-19 4.46578984875 3.3843652955 5.547214402 ZT20-23 5.11499232125 4.557058604 5.6729260385